All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Joshua Calka

Bib: 31511•M

MA

Boston Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:56
3.11 mi
Rank: #22626
Start → 5K
27:56 | 9:00/mi
10K
55:17
6.21 mi
Rank: #22275 (+351)
5K → 10K
27:21 | 8:49/mi
15K
1:22:48
9.32 mi
Rank: #22182 (+93)
10K → 15K
27:31 | 8:52/mi
20K
1:50:40
12.43 mi
Rank: #22057 (+125)
15K → 20K
27:52 | 8:59/mi
HALF
1:56:47
13.11 mi
Rank: #22075 (-18)
20K → HALF
6:07 | 8:59/mi
25K
2:19:07
15.53 mi
Rank: #22039 (+36)
HALF → 25K
22:20 | 9:13/mi
30K
2:50:08
18.64 mi
Rank: #22312 (-273)
25K → 30K
31:01 | 9:59/mi
20M
3:04:34
20.00 mi
Rank: #22531 (-219)
30K → 20M
14:26 | 10:38/mi
21M
3:15:57
21.00 mi
Rank: #22626 (-95)
20M → 21M
11:23 | 11:23/mi
35K
3:24:20
21.75 mi
Rank: #22781 (-155)
21M → 35K
8:23 | 11:13/mi
23M
3:38:08
23.00 mi
Rank: #22913 (-132)
35K → 23M
13:48 | 11:02/mi
24M
3:48:30
24.00 mi
Rank: #22956 (-43)
23M → 24M
10:22 | 10:22/mi
40K
3:57:32
24.85 mi
Rank: #22948 (+8)
24M → 40K
9:02 | 10:34/mi
25.2M
4:01:09
25.20 mi
Rank: #22903 (+45)
40K → 25.2M
3:37 | 10:30/mi
FINISH
4:10:18
26.22 mi
Rank: #22822 (+81)
25.2M → FINISH
9:09 | 8:59/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:56:47
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:13:31
Pace10:12 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5627:569:0027:56
9:00
-
10K
6.21 mi12:23:1755:178:5427:21
8:49
-0:11
15K
9.32 mi12:50:481:22:488:5427:31
8:52
+0:03
20K
12.43 mi13:18:401:50:408:5527:52
8:59
+0:07
HALF
13.11 mi13:24:471:56:478:556:07
8:59
0:00
25K
15.53 mi13:47:072:19:078:5822:20
9:13
+0:14
30K
18.64 mi14:18:082:50:089:0831:01
9:59
+0:46
20M
20.00 mi14:32:343:04:349:1414:26
10:38
+0:39
21M
21.00 mi14:43:573:15:579:2011:23
11:23
+0:45
35K
21.75 mi14:52:203:24:209:248:23
11:13
-0:10
23M
23.00 mi15:06:083:38:089:3013:48
11:02
-0:11
24M
24.00 mi15:16:303:48:309:3210:22
10:22
-0:40
40K
24.85 mi15:25:323:57:329:349:02
10:34
+0:12
25.2M
25.20 mi15:29:094:01:099:353:37
10:30
-0:04
FINISH
26.22 mi15:38:184:10:189:349:09
8:59
-1:31

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:49 /mi

Average Pace

9:33 /mi

Slowest Pace

11:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:28:16

59% of race

Time at Steady Pace

41:23

17% of race

Time at Slower Pace

1:00:39

24% of race

Average Pace: 9:33 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:5627:569:0027:56
9:00
#22626
10K
6.21 mi12:23:1755:178:5427:21
8:49
#22275
15K
9.32 mi12:50:481:22:488:5427:31
8:52
#22182
20K
12.43 mi13:18:401:50:408:5527:52
8:59
#22057
HALF
13.11 mi13:24:471:56:478:556:07
8:59
#22075
25K
15.53 mi13:47:072:19:078:5822:20
9:13
#22039
30K
18.64 mi14:18:082:50:089:0831:01
9:59
#22312
20M
20.00 mi14:32:343:04:349:1414:26
10:38
#22531
21M
21.00 mi14:43:573:15:579:2011:23
11:23
#22626
35K
21.75 mi14:52:203:24:209:248:23
11:13
#22781
23M
23.00 mi15:06:083:38:089:3013:48
11:02
#22913
24M
24.00 mi15:16:303:48:309:3210:22
10:22
#22956
40K
24.85 mi15:25:323:57:329:349:02
10:34
#22948
25.2M
25.20 mi15:29:094:01:099:353:37
10:30
#22903
FINISH
26.22 mi15:38:184:10:189:349:09
8:59
#22822
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22626135431354322006(Top 76%)13269(Top 81%)13269(Top 232%)
10K6.21 mi3.10 mi22275+35113382+16113382+16121920(Top 76%)13216(Top 81%)13216(Top 231%)
15K9.32 mi3.11 mi22182+9313342+4013342+4022006(Top 76%)13269(Top 81%)13269(Top 232%)
20K12.43 mi3.11 mi22057+12513280+6213280+6221797(Top 75%)13150(Top 80%)13150(Top 230%)
HALF13.11 mi0.68 mi22075-1813285-513285-522611(Top 78%)13557(Top 83%)13557(Top 237%)
25K15.53 mi2.42 mi22039+3613270+1513270+1522070(Top 76%)13271(Top 81%)13271(Top 232%)
30K18.64 mi3.11 mi22312-27313378-10813378-10823086(Top 80%)13660(Top 84%)13660(Top 239%)
20M20.00 mi1.36 mi22531-21913461-8313461-8324119(Top 83%)14051(Top 86%)14051(Top 246%)
21M21.00 mi1.00 mi22626-9513491-3013491-3023921(Top 82%)13903(Top 85%)13903(Top 243%)
35K21.75 mi0.75 mi22781-15513551-6013551-6025590(Top 88%)14663(Top 90%)14663(Top 256%)
23M23.00 mi1.25 mi22913-13213599-4813599-4824544(Top 85%)14123(Top 86%)14123(Top 247%)
24M24.00 mi1.00 mi22956-4313616-1713616-1723760(Top 82%)13732(Top 84%)13732(Top 240%)
40K24.85 mi0.85 mi22948+813602+1413602+1423371(Top 81%)13480(Top 82%)13480(Top 236%)
25.2M25.20 mi0.35 mi22903+4513572+3013572+3021000(Top 72%)12364(Top 76%)12364(Top 216%)
FINISH26.22 mi1.02 mi22822+8113523+4913523+4920422(Top 70%)12055(Top 74%)12055(Top 211%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

22006

Males

13269

M18-39

13269

5K→10K

3.1 - 6.2 mi

Top 76%
×5
+79ft-138ft

Overall

21920

Males

13216

M18-39

13216

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

22006

Males

13269

M18-39

13269

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21797

Males

13150

M18-39

13150

20K→HALF

12.4 - 13.1 mi

Top 78%
×2
+19ft-37ft

Overall

22611

Males

13557

M18-39

13557

HALF→25K

13.1 - 15.5 mi

Top 76%
×4
+66ft-88ft

Overall

22070

Males

13271

M18-39

13271

25K→30K

15.5 - 18.6 mi

Top 80%
×9
+181ft-148ft

Overall

23086

Males

13660

M18-39

13660

30K→20M

18.6 - 20.0 mi

Top 83%
×5
+64ft-50ft

Overall

24119

Males

14051

M18-39

14051

20M→21M

20.0 - 21.0 mi

Top 82%
×8
+106ft-24ft

Overall

23921

Males

13903

M18-39

13903

21M→35K

21.0 - 21.8 mi

Top 88%
×7
+17ft-86ft

Overall

25590

Males

14663

M18-39

14663

35K→23M

21.8 - 23.0 mi

Top 85%
×5
+23ft-63ft

Overall

24544

Males

14123

M18-39

14123

23M→24M

23.0 - 24.0 mi

Top 82%
×6
+12ft-82ft

Overall

23760

Males

13732

M18-39

13732

24M→40K

24.0 - 24.9 mi

Top 81%
×1
+6ft-20ft

Overall

23371

Males

13480

M18-39

13480

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1
+13ft-16ft

Overall

21000

Males

12364

M18-39

12364

25.2M→FINISH

25.2 - 26.2 mi

Top 70%
×2
+22ft-21ft

Overall

20422

Males

12055

M18-39

12055

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1518
Passed By
1714
Net Change
-196
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22626
5K → 10K477126+351#22626#22275
10K → 15K227134+93#22275#22182
15K → 20K21994+125#22182#22057
20K → HALF2139-18#22057#22075
HALF → 25K144108+36#22075#22039
25K → 30K93366-273#22039#22312
30K → 20M34253-219#22312#22531
20M → 21M45140-95#22531#22626
21M → 35K7162-155#22626#22781
35K → 23M29161-132#22781#22913
23M → 24M3881-43#22913#22956
24M → 40K4133+8#22956#22948
40K → 25.2M494+45#22948#22903
25.2M → FINISH9413+81#22903#22822
TOTALS15181714-196
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing