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BOSTON MARATHON 2026

John Sim

Bib: 14789•M

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 35%
Gender (Male)
#0 / 16340
Top 48%
Masters (Masters Men)
#0 / 10617
Top 37%
Age Group (M55-59)
#0 / 1491
Top 19%
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
23:21
3.11 mi
Rank: #12886
Start → 5K
23:21 | 7:31/mi
10K
46:49
6.21 mi
Rank: #13129 (-243)
5K → 10K
23:28 | 7:34/mi
15K
1:09:33
9.32 mi
Rank: #12483 (+646)
10K → 15K
22:44 | 7:20/mi
20K
1:32:22
12.43 mi
Rank: #11984 (+499)
15K → 20K
22:49 | 7:21/mi
HALF
1:37:24
13.11 mi
Rank: #11980 (+4)
20K → HALF
5:02 | 7:24/mi
25K
1:55:14
15.53 mi
Rank: #11707 (+273)
HALF → 25K
17:50 | 7:22/mi
30K
2:18:24
18.64 mi
Rank: #11237 (+470)
25K → 30K
23:10 | 7:28/mi
20M
2:28:34
20.00 mi
Rank: #11035 (+202)
30K → 20M
10:10 | 7:30/mi
21M
2:36:16
21.00 mi
Rank: #10795 (+240)
20M → 21M
7:42 | 7:42/mi
35K
2:41:47
21.75 mi
Rank: #10740 (+55)
21M → 35K
5:31 | 7:23/mi
23M
2:51:13
23.00 mi
Rank: #10573 (+167)
35K → 23M
9:26 | 7:33/mi
24M
2:58:34
24.00 mi
Rank: #10474 (+99)
23M → 24M
7:21 | 7:21/mi
40K
3:04:57
24.85 mi
Rank: #10363 (+111)
24M → 40K
6:23 | 7:28/mi
25.2M
3:07:40
25.20 mi
Rank: #10306 (+57)
40K → 25.2M
2:43 | 7:53/mi
FINISH
3:14:40
26.22 mi
Rank: #10107 (+199)
25.2M → FINISH
7:00 | 6:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:37:24
Pace7:26 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:37:16
Pace7:26 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5123:217:3123:21
7:31
-
10K
6.21 mi11:17:1946:497:3323:28
7:34
+0:03
15K
9.32 mi11:40:031:09:337:2822:44
7:20
-0:14
20K
12.43 mi12:02:521:32:227:2622:49
7:21
+0:01
HALF
13.11 mi12:07:541:37:247:265:02
7:24
+0:03
25K
15.53 mi12:25:441:55:147:2617:50
7:22
-0:02
30K
18.64 mi12:48:542:18:247:2623:10
7:28
+0:06
20M
20.00 mi12:59:042:28:347:2610:10
7:30
+0:02
21M
21.00 mi13:06:462:36:167:277:42
7:42
+0:12
35K
21.75 mi13:12:172:41:477:275:31
7:23
-0:19
23M
23.00 mi13:21:432:51:137:279:26
7:33
+0:10
24M
24.00 mi13:29:042:58:347:277:21
7:21
-0:12
40K
24.85 mi13:35:273:04:577:276:23
7:28
+0:07
25.2M
25.20 mi13:38:103:07:407:272:43
7:53
+0:25
FINISH
26.22 mi13:45:103:14:407:267:00
6:53
-1:00

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

6:53 /mi

Average Pace

7:26 /mi

Slowest Pace

7:53 /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

3:04:15

95% of race

Time at Steady Pace

10:25

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:25 /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 mi10:53:5123:217:3123:21
7:31
#12886
10K
6.21 mi11:17:1946:497:3323:28
7:34
#13129
15K
9.32 mi11:40:031:09:337:2822:44
7:20
#12483
20K
12.43 mi12:02:521:32:227:2622:49
7:21
#11984
HALF
13.11 mi12:07:541:37:247:265:02
7:24
#11980
25K
15.53 mi12:25:441:55:147:2617:50
7:22
#11707
30K
18.64 mi12:48:542:18:247:2623:10
7:28
#11237
20M
20.00 mi12:59:042:28:347:2610:10
7:30
#11035
21M
21.00 mi13:06:462:36:167:277:42
7:42
#10795
35K
21.75 mi13:12:172:41:477:275:31
7:23
#10740
23M
23.00 mi13:21:432:51:137:279:26
7:33
#10573
24M
24.00 mi13:29:042:58:347:277:21
7:21
#10474
40K
24.85 mi13:35:273:04:577:276:23
7:28
#10363
25.2M
25.20 mi13:38:103:07:407:272:43
7:53
#10306
FINISH
26.22 mi13:45:103:14:407:267:00
6:53
#10107
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi128869410941011202(Top 39%)8573(Top 52%)8573(Top 575%)
10K6.21 mi3.10 mi13129-2439479-699479-6913391(Top 46%)9564(Top 59%)9564(Top 641%)
15K9.32 mi3.11 mi12483+6469196+2839196+28311202(Top 39%)8573(Top 52%)8573(Top 575%)
20K12.43 mi3.11 mi11984+4998951+2458951+24510575(Top 36%)8194(Top 50%)8194(Top 550%)
HALF13.11 mi0.68 mi11980+48957-68957-611881(Top 41%)8853(Top 54%)8853(Top 594%)
25K15.53 mi2.42 mi11707+2738790+1678790+16710162(Top 35%)7914(Top 48%)7914(Top 531%)
30K18.64 mi3.11 mi11237+4708538+2528538+2529314(Top 32%)7348(Top 45%)7348(Top 493%)
20M20.00 mi1.36 mi11035+2028405+1338405+1339010(Top 31%)7076(Top 43%)7076(Top 475%)
21M21.00 mi1.00 mi10795+2408267+1388267+1387833(Top 27%)6279(Top 38%)6279(Top 421%)
35K21.75 mi0.75 mi10740+558213+548213+549877(Top 34%)7420(Top 45%)7420(Top 498%)
23M23.00 mi1.25 mi10573+1678096+1178096+1179137(Top 31%)6948(Top 43%)6948(Top 466%)
24M24.00 mi1.00 mi10474+998032+648032+648951(Top 31%)6781(Top 41%)6781(Top 455%)
40K24.85 mi0.85 mi10363+1117956+767956+768594(Top 30%)6495(Top 40%)6495(Top 436%)
25.2M25.20 mi0.35 mi10306+577915+417915+417564(Top 26%)5895(Top 36%)5895(Top 395%)
FINISH26.22 mi1.02 mi10107+1997794+1217794+1216604(Top 23%)5264(Top 32%)5264(Top 353%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21
+97ft-345ft

Overall

11202

Males

8573

M55-59

8573

5K→10K

3.1 - 6.2 mi

Top 46%
×5
+79ft-138ft

Overall

13391

Males

9564

M55-59

9564

10K→15K

6.2 - 9.3 mi

Top 39%
×3
+67ft-78ft

Overall

11202

Males

8573

M55-59

8573

15K→20K

9.3 - 12.4 mi

Top 36%
×5
+106ft-86ft

Overall

10575

Males

8194

M55-59

8194

20K→HALF

12.4 - 13.1 mi

Top 41%
×2
+19ft-37ft

Overall

11881

Males

8853

M55-59

8853

HALF→25K

13.1 - 15.5 mi

Top 35%
×4
+66ft-88ft

Overall

10162

Males

7914

M55-59

7914

25K→30K

15.5 - 18.6 mi

Top 32%
×9
+181ft-148ft

Overall

9314

Males

7348

M55-59

7348

30K→20M

18.6 - 20.0 mi

Top 31%
×5
+64ft-50ft

Overall

9010

Males

7076

M55-59

7076

20M→21M

20.0 - 21.0 mi

Top 27%
×8
+106ft-24ft

Overall

7833

Males

6279

M55-59

6279

21M→35K

21.0 - 21.8 mi

Top 34%
×7
+17ft-86ft

Overall

9877

Males

7420

M55-59

7420

35K→23M

21.8 - 23.0 mi

Top 31%
×5
+23ft-63ft

Overall

9137

Males

6948

M55-59

6948

23M→24M

23.0 - 24.0 mi

Top 31%
×6
+12ft-82ft

Overall

8951

Males

6781

M55-59

6781

24M→40K

24.0 - 24.9 mi

Top 30%
×1
+6ft-20ft

Overall

8594

Males

6495

M55-59

6495

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1
+13ft-16ft

Overall

7564

Males

5895

M55-59

5895

25.2M→FINISH

25.2 - 26.2 mi

Top 23%
×2
+22ft-21ft

Overall

6604

Males

5264

M55-59

5264

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3405
Passed By
626
Net Change
+2779
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12886
5K → 10K174417-243#12886#13129
10K → 15K66014+646#13129#12483
15K → 20K5089+499#12483#11984
20K → HALF2723+4#11984#11980
HALF → 25K28512+273#11980#11707
25K → 30K49020+470#11707#11237
30K → 20M21210+202#11237#11035
20M → 21M2499+240#11035#10795
21M → 35K9136+55#10795#10740
35K → 23M19326+167#10740#10573
23M → 24M12526+99#10573#10474
24M → 40K12413+111#10474#10363
40K → 25.2M625+57#10363#10306
25.2M → FINISH2056+199#10306#10107
TOTALS3405626+2779
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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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.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing