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BOSTON MARATHON 2026

Zhenglin Nelson Yap

Bib: 29765•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 50%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M40-44)
#0 / 2198
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
24:20
3.11 mi
Rank: #15664
Start → 5K
24:20 | 7:50/mi
10K
47:23
6.21 mi
Rank: #13967 (+1697)
5K → 10K
23:03 | 7:26/mi
15K
1:10:28
9.32 mi
Rank: #13302 (+665)
10K → 15K
23:05 | 7:26/mi
20K
1:34:05
12.43 mi
Rank: #13195 (+107)
15K → 20K
23:37 | 7:37/mi
HALF
1:39:08
13.11 mi
Rank: #13139 (+56)
20K → HALF
5:03 | 7:25/mi
25K
1:57:42
15.53 mi
Rank: #13072 (+67)
HALF → 25K
18:34 | 7:40/mi
30K
2:22:09
18.64 mi
Rank: #12922 (+150)
25K → 30K
24:27 | 7:53/mi
20M
2:33:25
20.00 mi
Rank: #13052 (-130)
30K → 20M
11:16 | 8:18/mi
21M
2:42:16
21.00 mi
Rank: #13170 (-118)
20M → 21M
8:51 | 8:51/mi
35K
2:49:01
21.75 mi
Rank: #13459 (-289)
21M → 35K
6:45 | 9:02/mi
23M
2:59:32
23.00 mi
Rank: #13556 (-97)
35K → 23M
10:31 | 8:25/mi
24M
3:08:32
24.00 mi
Rank: #13902 (-346)
23M → 24M
9:00 | 9:00/mi
40K
3:16:02
24.85 mi
Rank: #14040 (-138)
24M → 40K
7:30 | 8:47/mi
25.2M
3:19:31
25.20 mi
Rank: #14156 (-116)
40K → 25.2M
3:29 | 10:07/mi
FINISH
3:28:11
26.22 mi
Rank: #14382 (-226)
25.2M → FINISH
8:40 | 8:31/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:08
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:49:03
Pace8:20 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4324:207:5024:20
7:50
-
10K
6.21 mi12:11:4647:237:3823:03
7:26
-0:24
15K
9.32 mi12:34:511:10:287:3423:05
7:26
0:00
20K
12.43 mi12:58:281:34:057:3523:37
7:37
+0:11
HALF
13.11 mi13:03:311:39:087:345:03
7:25
-0:12
25K
15.53 mi13:22:051:57:427:3518:34
7:40
+0:15
30K
18.64 mi13:46:322:22:097:3824:27
7:53
+0:13
20M
20.00 mi13:57:482:33:257:4111:16
8:18
+0:25
21M
21.00 mi14:06:392:42:167:448:51
8:51
+0:33
35K
21.75 mi14:13:242:49:017:476:45
9:02
+0:11
23M
23.00 mi14:23:552:59:327:4910:31
8:25
-0:37
24M
24.00 mi14:32:553:08:327:529:00
9:00
+0:35
40K
24.85 mi14:40:253:16:027:547:30
8:47
-0:13
25.2M
25.20 mi14:43:543:19:317:563:29
10:07
+1:20
FINISH
26.22 mi14:52:343:28:117:578:40
8:31
-1:36

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

7:25 /mi

Average Pace

7:57 /mi

Slowest Pace

10:07 /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

2:22:09

68% of race

Time at Steady Pace

30:27

15% of race

Time at Slower Pace

35:35

17% of race

Average Pace: 7:56 /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 mi11:48:4324:207:5024:20
7:50
#15664
10K
6.21 mi12:11:4647:237:3823:03
7:26
#13967
15K
9.32 mi12:34:511:10:287:3423:05
7:26
#13302
20K
12.43 mi12:58:281:34:057:3523:37
7:37
#13195
HALF
13.11 mi13:03:311:39:087:345:03
7:25
#13139
25K
15.53 mi13:22:051:57:427:3518:34
7:40
#13072
30K
18.64 mi13:46:322:22:097:3824:27
7:53
#12922
20M
20.00 mi13:57:482:33:257:4111:16
8:18
#13052
21M
21.00 mi14:06:392:42:167:448:51
8:51
#13170
35K
21.75 mi14:13:242:49:017:476:45
9:02
#13459
23M
23.00 mi14:23:552:59:327:4910:31
8:25
#13556
24M
24.00 mi14:32:553:08:327:529:00
9:00
#13902
40K
24.85 mi14:40:253:16:027:547:30
8:47
#14040
25.2M
25.20 mi14:43:543:19:317:563:29
10:07
#14156
FINISH
26.22 mi14:52:343:28:117:578:40
8:31
#14382
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi15664104981049812219(Top 42%)9037(Top 55%)9037(Top 411%)
10K6.21 mi3.10 mi13967+16979848+6509848+65012245(Top 42%)9099(Top 56%)9099(Top 414%)
15K9.32 mi3.11 mi13302+6659529+3199529+31912219(Top 42%)9037(Top 55%)9037(Top 411%)
20K12.43 mi3.11 mi13195+1079454+759454+7512844(Top 44%)9217(Top 56%)9217(Top 419%)
HALF13.11 mi0.68 mi13139+569427+279427+2712173(Top 42%)9028(Top 55%)9028(Top 411%)
25K15.53 mi2.42 mi13072+679375+529375+5212679(Top 44%)9103(Top 56%)9103(Top 414%)
30K18.64 mi3.11 mi12922+1509267+1089267+10812505(Top 43%)8889(Top 54%)8889(Top 404%)
20M20.00 mi1.36 mi13052-1309297-309297-3014870(Top 51%)9836(Top 60%)9836(Top 447%)
21M21.00 mi1.00 mi13170-1189331-349331-3415252(Top 53%)9924(Top 61%)9924(Top 452%)
35K21.75 mi0.75 mi13459-2899445-1149445-11420082(Top 69%)12021(Top 74%)12021(Top 547%)
23M23.00 mi1.25 mi13556-979454-99454-915092(Top 52%)9722(Top 59%)9722(Top 442%)
24M24.00 mi1.00 mi13902-3469585-1319585-13119436(Top 67%)11612(Top 71%)11612(Top 528%)
40K24.85 mi0.85 mi14040-1389614-299614-2917208(Top 59%)10506(Top 64%)10506(Top 478%)
25.2M25.20 mi0.35 mi14156-1169652-389652-3819691(Top 68%)11689(Top 72%)11689(Top 532%)
FINISH26.22 mi1.02 mi14382-2269728-769728-7618167(Top 63%)10962(Top 67%)10962(Top 499%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21
+97ft-345ft

Overall

12219

Males

9037

M40-44

9037

5K→10K

3.1 - 6.2 mi

Top 42%
×5
+79ft-138ft

Overall

12245

Males

9099

M40-44

9099

10K→15K

6.2 - 9.3 mi

Top 42%
×3
+67ft-78ft

Overall

12219

Males

9037

M40-44

9037

15K→20K

9.3 - 12.4 mi

Top 44%
×5
+106ft-86ft

Overall

12844

Males

9217

M40-44

9217

20K→HALF

12.4 - 13.1 mi

Top 42%
×2
+19ft-37ft

Overall

12173

Males

9028

M40-44

9028

HALF→25K

13.1 - 15.5 mi

Top 44%
×4
+66ft-88ft

Overall

12679

Males

9103

M40-44

9103

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12505

Males

8889

M40-44

8889

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14870

Males

9836

M40-44

9836

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15252

Males

9924

M40-44

9924

21M→35K

21.0 - 21.8 mi

Top 69%
×7
+17ft-86ft

Overall

20082

Males

12021

M40-44

12021

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15092

Males

9722

M40-44

9722

23M→24M

23.0 - 24.0 mi

Top 67%
×6
+12ft-82ft

Overall

19436

Males

11612

M40-44

11612

24M→40K

24.0 - 24.9 mi

Top 59%
×1
+6ft-20ft

Overall

17208

Males

10506

M40-44

10506

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19691

Males

11689

M40-44

11689

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
×2
+22ft-21ft

Overall

18167

Males

10962

M40-44

10962

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3366
Passed By
2084
Net Change
+1282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15664
5K → 10K171720+1697#15664#13967
10K → 15K68419+665#13967#13302
15K → 20K210103+107#13302#13195
20K → HALF6913+56#13195#13139
HALF → 25K15083+67#13139#13072
25K → 30K24999+150#13072#12922
30K → 20M73203-130#12922#13052
20M → 21M51169-118#13052#13170
21M → 35K14303-289#13170#13459
35K → 23M67164-97#13459#13556
23M → 24M16362-346#13556#13902
24M → 40K39177-138#13902#14040
40K → 25.2M6122-116#14040#14156
25.2M → FINISH21247-226#14156#14382
TOTALS33662084+1282
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing