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BOSTON MARATHON 2025

Tang Yongdong

Bib: 31427•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:38/mi
26:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:31/mi
53:17
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:20:45
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:48:56
↑ 106↓ 860.1%
Half· 13.11 mi
9:26/mi
1:55:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:16:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:51/mi
2:44:18
↑ 181↓ 1480.2%
20M
9:44/mi
2:57:32
↑ 64↓ 500.2%
21M
9:51/mi
3:07:23
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:14:29
↑ 17↓ 861.7%
23M
10:43/mi
3:27:54
↑ 23↓ 630.6%
24M
10:04/mi
3:37:58
↓ 821.3%
40K· 24.85 mi
9:55/mi
3:46:27
↓ 200.3%
25.2M
9:34/mi
3:49:45
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
3:59:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:22
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:04:05
Pace9:28 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5626:508:3826:50
8:38
-
10K
6.21 mi12:16:2353:178:3526:27
8:31
-0:07
15K
9.32 mi12:43:511:20:458:4027:28
8:50
+0:19
20K
12.43 mi13:12:021:48:568:4628:11
9:04
+0:14
Half
13.11 mi13:18:281:55:228:486:26
9:26
+0:22
25K
15.53 mi13:39:532:16:478:4821:25
8:50
-0:36
30K
18.64 mi14:07:242:44:188:4927:31
8:51
+0:01
20M
20.00 mi14:20:382:57:328:5313:14
9:44
+0:53
21M
21.00 mi14:30:293:07:238:559:51
9:51
+0:07
35K
21.75 mi14:37:353:14:298:577:06
9:29
-0:22
23M
23.00 mi14:51:003:27:549:0213:25
10:43
+1:14
24M
24.00 mi15:01:043:37:589:0510:04
10:04
-0:39
40K
24.85 mi15:09:333:46:279:078:29
9:55
-0:09
25.2M
25.20 mi15:12:513:49:459:073:18
9:34
-0:21
Finish
26.22 mi15:22:333:59:279:089:42
9:31
-0:03

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

8:31 /mi

Average Pace

9:08 /mi

Slowest Pace

10:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:52

66% of race

Time at Steady Pace

39:46

17% of race

Time at Slower Pace

41:49

17% of race

Average Pace: 9:08 /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 mi11:49:5626:508:3826:50
8:38
#20676
10K
6.21 mi12:16:2353:178:3526:27
8:31
#20264
15K
9.32 mi12:43:511:20:458:4027:28
8:50
#20551
20K
12.43 mi13:12:021:48:568:4628:11
9:04
#20746
Half
13.11 mi13:18:281:55:228:486:26
9:26
#20931
25K
15.53 mi13:39:532:16:478:4821:25
8:50
#20657
30K
18.64 mi14:07:242:44:188:4927:31
8:51
#19942
20M
20.00 mi14:20:382:57:328:5313:14
9:44
#19972
21M
21.00 mi14:30:293:07:238:559:51
9:51
#19827
35K
21.75 mi14:37:353:14:298:577:06
9:29
#19838
23M
23.00 mi14:51:003:27:549:0213:25
10:43
#20104
24M
24.00 mi15:01:043:37:589:0510:04
10:04
#20202
40K
24.85 mi15:09:333:46:279:078:29
9:55
#20228
25.2M
25.20 mi15:12:513:49:459:073:18
9:34
#20148
Finish
26.22 mi15:22:333:59:279:089:42
9:31
#20242
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20676127191271921225(Top 75%)13041(Top 81%)13041(Top 580%)
10K6.21 mi3.10 mi20264+41212576+14312576+14319874(Top 70%)12421(Top 77%)12421(Top 553%)
15K9.32 mi3.11 mi20551-28712711-13512711-13521225(Top 75%)13041(Top 81%)13041(Top 580%)
20K12.43 mi3.11 mi20746-19512791-8012791-8021316(Top 75%)13048(Top 81%)13048(Top 581%)
Half13.11 mi0.68 mi20931-18512879-8812879-8823324(Top 82%)13924(Top 86%)13924(Top 620%)
25K15.53 mi2.42 mi20657+27412748+13112748+13119097(Top 67%)12020(Top 75%)12020(Top 535%)
30K18.64 mi3.11 mi19942+71512395+35312395+35316932(Top 60%)10894(Top 68%)10894(Top 485%)
20M20.00 mi1.36 mi19972-3012387+812387+820061(Top 71%)12182(Top 76%)12182(Top 542%)
21M21.00 mi1.00 mi19827+14512299+8812299+8817688(Top 62%)11013(Top 68%)11013(Top 490%)
35K21.75 mi0.75 mi19838-1112288+1112288+1120289(Top 71%)12109(Top 75%)12109(Top 539%)
23M23.00 mi1.25 mi20104-26612368-8012368-8022549(Top 79%)13127(Top 82%)13127(Top 584%)
24M24.00 mi1.00 mi20202-9812394-2612394-2621528(Top 76%)12602(Top 78%)12602(Top 561%)
40K24.85 mi0.85 mi20228-2612388+612388+620181(Top 71%)11883(Top 74%)11883(Top 529%)
25.2M25.20 mi0.35 mi20148+8012344+4412344+4414950(Top 53%)9407(Top 58%)9407(Top 419%)
Finish26.22 mi1.02 mi20242-9412383-3912383-3921235(Top 75%)12403(Top 77%)12403(Top 552%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21225

Males

13041

M40-44

13041

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19874

Males

12421

M40-44

12421

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21225

Males

13041

M40-44

13041

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21316

Males

13048

M40-44

13048

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23324

Males

13924

M40-44

13924

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

19097

Males

12020

M40-44

12020

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16932

Males

10894

M40-44

10894

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20061

Males

12182

M40-44

12182

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17688

Males

11013

M40-44

11013

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20289

Males

12109

M40-44

12109

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

22549

Males

13127

M40-44

13127

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

21528

Males

12602

M40-44

12602

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20181

Males

11883

M40-44

11883

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14950

Males

9407

M40-44

9407

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21235

Males

12403

M40-44

12403

Passing Analysis

Category:
Athletes Passed
2361
Passed By
1927
Net Change
+434
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20676
5K → 10K553141+412#20676#20264
10K → 15K107394-287#20264#20551
15K → 20K119314-195#20551#20746
20K → Half5190-185#20746#20931
Half → 25K30733+274#20931#20657
25K → 30K7216+715#20657#19942
30K → 20M99129-30#19942#19972
20M → 21M17328+145#19972#19827
21M → 35K4657-11#19827#19838
35K → 23M32298-266#19838#20104
23M → 24M29127-98#20104#20202
24M → 40K5480-26#20202#20228
40K → 25.2M855+80#20228#20148
25.2M → Finish31125-94#20148#20242
TOTALS23611927+434
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing