Boston Marathon logo
BOSTON MARATHON 2023

Jonathan Kotula

Bib: 25328•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #14672
Start → 5K
25:09 | 8:06/mi
10K· 6.21 mi
50:27
Rank: #15246 (-574)
5K → 10K
25:18 | 8:09/mi
15K· 9.32 mi
1:16:19
Rank: #15733 (-487)
10K → 15K
25:52 | 8:20/mi
20K· 12.43 mi
1:42:15
Rank: #15766 (-33)
15K → 20K
25:56 | 8:21/mi
Half· 13.11 mi
1:47:49
Rank: #15748 (+18)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:08:36
Rank: #15880 (-132)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:36:56
Rank: #16274 (-394)
25K → 30K
28:20 | 9:07/mi
20M
2:49:28
Rank: #16361 (-87)
30K → 20M
12:32 | 9:13/mi
21M
2:59:40
Rank: #16522 (-161)
20M → 21M
10:12 | 10:12/mi
35K· 21.75 mi
3:06:19
Rank: #16567 (-45)
21M → 35K
6:39 | 8:53/mi
23M
3:18:14
Rank: #16688 (-121)
35K → 23M
11:55 | 9:31/mi
24M
3:27:30
Rank: #16783 (-95)
23M → 24M
9:16 | 9:16/mi
40K· 24.85 mi
3:35:41
Rank: #16857 (-74)
24M → 40K
8:11 | 9:34/mi
25.2M
3:39:26
Rank: #16951 (-94)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
3:48:53
Rank: #17084 (-133)
25.2M → Finish
9:27 | 9:16/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:49
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:01:04
Pace9:14 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:1625:098:0625:09
8:06
-
10K
6.21 mi12:06:3450:278:0725:18
8:09
+0:03
15K
9.32 mi12:32:261:16:198:1125:52
8:20
+0:11
20K
12.43 mi12:58:221:42:158:1425:56
8:21
+0:01
Half
13.11 mi13:03:561:47:498:135:34
8:10
-0:11
25K
15.53 mi13:24:432:08:368:1720:47
8:34
+0:24
30K
18.64 mi13:53:032:36:568:2528:20
9:07
+0:33
20M
20.00 mi14:05:352:49:288:2812:32
9:13
+0:06
21M
21.00 mi14:15:472:59:408:3310:12
10:12
+0:59
35K
21.75 mi14:22:263:06:198:346:39
8:53
-1:19
23M
23.00 mi14:34:213:18:148:3711:55
9:31
+0:38
24M
24.00 mi14:43:373:27:308:399:16
9:16
-0:15
40K
24.85 mi14:51:483:35:418:418:11
9:34
+0:18
25.2M
25.20 mi14:55:333:39:268:423:45
10:52
+1:18
Finish
26.22 mi15:05:003:48:538:449:27
9:16
-1:36

Checkpoints & Pacing

📈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

8:06 /mi

Average Pace

8:44 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:36

56% of race

Time at Steady Pace

1:06:14

29% of race

Time at Slower Pace

34:03

15% of race

Average Pace: 8:44 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:41:1625:098:0625:09
8:06
#14672
10K
6.21 mi12:06:3450:278:0725:18
8:09
#15246
15K
9.32 mi12:32:261:16:198:1125:52
8:20
#15733
20K
12.43 mi12:58:221:42:158:1425:56
8:21
#15766
Half
13.11 mi13:03:561:47:498:135:34
8:10
#15748
25K
15.53 mi13:24:432:08:368:1720:47
8:34
#15880
30K
18.64 mi13:53:032:36:568:2528:20
9:07
#16274
20M
20.00 mi14:05:352:49:288:2812:32
9:13
#16361
21M
21.00 mi14:15:472:59:408:3310:12
10:12
#16522
35K
21.75 mi14:22:263:06:198:346:39
8:53
#16567
23M
23.00 mi14:34:213:18:148:3711:55
9:31
#16688
24M
24.00 mi14:43:373:27:308:399:16
9:16
#16783
40K
24.85 mi14:51:483:35:418:418:11
9:34
#16857
25.2M
25.20 mi14:55:333:39:268:423:45
10:52
#16951
Finish
26.22 mi15:05:003:48:538:449:27
9:16
#17084
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi14672102231022316689(Top 63%)10945(Top 72%)10945(Top 207%)
10K6.21 mi3.10 mi15246-57410429-20610429-20615835(Top 59%)10650(Top 70%)10650(Top 202%)
15K9.32 mi3.11 mi15733-48710602-17310602-17316689(Top 63%)10945(Top 72%)10945(Top 207%)
20K12.43 mi3.11 mi15766-3310589+1310589+1315919(Top 60%)10602(Top 70%)10602(Top 201%)
Half13.11 mi0.68 mi15748+1810578+1110578+1115481(Top 58%)10498(Top 69%)10498(Top 199%)
25K15.53 mi2.42 mi15880-13210601-2310601-2316633(Top 62%)10820(Top 71%)10820(Top 205%)
30K18.64 mi3.11 mi16274-39410703-10210703-10217783(Top 67%)11248(Top 74%)11248(Top 213%)
20M20.00 mi1.36 mi16361-8710718-1510718-1517645(Top 66%)11075(Top 73%)11075(Top 210%)
21M21.00 mi1.00 mi16522-16110781-6310781-6318693(Top 70%)11512(Top 76%)11512(Top 218%)
35K21.75 mi0.75 mi16567-4510793-1210793-1217363(Top 65%)10862(Top 72%)10862(Top 206%)
23M23.00 mi1.25 mi16688-12110828-3510828-3518382(Top 69%)11295(Top 74%)11295(Top 214%)
24M24.00 mi1.00 mi16783-9510848-2010848-2018313(Top 69%)11226(Top 74%)11226(Top 212%)
40K24.85 mi0.85 mi16857-7410856-810856-818563(Top 70%)11285(Top 74%)11285(Top 214%)
25.2M25.20 mi0.35 mi16951-9410886-3010886-3020118(Top 76%)11964(Top 79%)11964(Top 226%)
Finish26.22 mi1.02 mi17084-13310943-5710943-5719240(Top 72%)11637(Top 77%)11637(Top 220%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16689

Males

10945

M18-39

10945

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15835

Males

10650

M18-39

10650

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16689

Males

10945

M18-39

10945

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

15919

Males

10602

M18-39

10602

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

15481

Males

10498

M18-39

10498

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

16633

Males

10820

M18-39

10820

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17783

Males

11248

M18-39

11248

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17645

Males

11075

M18-39

11075

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18693

Males

11512

M18-39

11512

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

17363

Males

10862

M18-39

10862

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18382

Males

11295

M18-39

11295

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18313

Males

11226

M18-39

11226

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18563

Males

11285

M18-39

11285

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20118

Males

11964

M18-39

11964

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

19240

Males

11637

M18-39

11637

Passing Analysis

Category:
Athletes Passed
846
Passed By
3258
Net Change
-2412
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14672
5K → 10K111685-574#14672#15246
10K → 15K54541-487#15246#15733
15K → 20K167200-33#15733#15766
20K → Half3618+18#15766#15748
Half → 25K98230-132#15748#15880
25K → 30K88482-394#15880#16274
30K → 20M60147-87#16274#16361
20M → 21M41202-161#16361#16522
21M → 35K3277-45#16522#16567
35K → 23M52173-121#16567#16688
23M → 24M35130-95#16688#16783
24M → 40K33107-74#16783#16857
40K → 25.2M8102-94#16857#16951
25.2M → Finish31164-133#16951#17084
TOTALS8463258-2412
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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