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BOSTON MARATHON 2025

Sheng Peng

Bib: 29776•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
9:19/mi
28:58
↑ 97↓ 3451.5%
10K· 6.21 mi
9:21/mi
58:02
↑ 79↓ 1380.4%
15K· 9.32 mi
9:14/mi
1:26:42
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:55:03
↑ 106↓ 860.1%
Half· 13.11 mi
9:05/mi
2:01:15
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:24:21
↑ 66↓ 880.2%
30K· 18.64 mi
10:20/mi
2:56:26
↑ 181↓ 1480.2%
20M
10:50/mi
3:11:09
↑ 64↓ 500.2%
21M
11:23/mi
3:22:32
↑ 106↓ 241.6%
35K· 21.75 mi
9:55/mi
3:29:57
↑ 17↓ 861.7%
23M
10:32/mi
3:43:08
↑ 23↓ 630.6%
24M
10:16/mi
3:53:24
↓ 821.3%
40K· 24.85 mi
10:40/mi
4:02:31
↓ 200.3%
25.2M
11:39/mi
4:06:32
↑ 13↓ 160.2%
Finish· 26.22 mi
10:16/mi
4:17:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:15:45
Pace10:21 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0628:589:1928:58
9:19
-
10K
6.21 mi12:17:1058:029:2029:04
9:21
+0:02
15K
9.32 mi12:45:501:26:429:1828:40
9:14
-0:07
20K
12.43 mi13:14:111:55:039:1528:21
9:07
-0:07
Half
13.11 mi13:20:232:01:159:156:12
9:05
-0:02
25K
15.53 mi13:43:292:24:219:1823:06
9:32
+0:27
30K
18.64 mi14:15:342:56:269:2832:05
10:20
+0:48
20M
20.00 mi14:30:173:11:099:3314:43
10:50
+0:30
21M
21.00 mi14:41:403:22:329:3911:23
11:23
+0:33
35K
21.75 mi14:49:053:29:579:397:25
9:55
-1:28
23M
23.00 mi15:02:163:43:089:4213:11
10:32
+0:37
24M
24.00 mi15:12:323:53:249:4410:16
10:16
-0:16
40K
24.85 mi15:21:394:02:319:459:07
10:40
+0:24
25.2M
25.20 mi15:25:404:06:329:474:01
11:39
+0:59
Finish
26.22 mi15:36:084:17:009:4910:28
10:16
-1:23

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

9:05 /mi

Average Pace

9:49 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:21

56% of race

Time at Steady Pace

1:13:25

29% of race

Time at Slower Pace

39:14

15% of race

Average Pace: 9:48 /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 mi11:48:0628:589:1928:58
9:19
#23627
10K
6.21 mi12:17:1058:029:2029:04
9:21
#23682
15K
9.32 mi12:45:501:26:429:1828:40
9:14
#23448
20K
12.43 mi13:14:111:55:039:1528:21
9:07
#23013
Half
13.11 mi13:20:232:01:159:156:12
9:05
#22956
25K
15.53 mi13:43:292:24:219:1823:06
9:32
#22761
30K
18.64 mi14:15:342:56:269:2832:05
10:20
#22703
20M
20.00 mi14:30:173:11:099:3314:43
10:50
#22741
21M
21.00 mi14:41:403:22:329:3911:23
11:23
#22704
35K
21.75 mi14:49:053:29:579:397:25
9:55
#22646
23M
23.00 mi15:02:163:43:089:4213:11
10:32
#22599
24M
24.00 mi15:12:323:53:249:4410:16
10:16
#22557
40K
24.85 mi15:21:394:02:319:459:07
10:40
#22553
25.2M
25.20 mi15:25:404:06:329:474:01
11:39
#22557
Finish
26.22 mi15:36:084:17:009:4910:28
10:16
#22595
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi23627140641406422943(Top 81%)13808(Top 86%)13808(Top 579%)
10K6.21 mi3.10 mi23682-5514096-3214096-3223698(Top 83%)14118(Top 88%)14118(Top 592%)
15K9.32 mi3.11 mi23448+23414004+9214004+9222943(Top 81%)13808(Top 86%)13808(Top 579%)
20K12.43 mi3.11 mi23013+43513815+18913815+18921566(Top 76%)13162(Top 82%)13162(Top 552%)
Half13.11 mi0.68 mi22956+5713792+2313792+2322160(Top 78%)13405(Top 83%)13405(Top 562%)
25K15.53 mi2.42 mi22761+19513691+10113691+10121947(Top 77%)13268(Top 82%)13268(Top 556%)
30K18.64 mi3.11 mi22703+5813623+6813623+6822528(Top 79%)13407(Top 83%)13407(Top 562%)
20M20.00 mi1.36 mi22741-3813611+1213611+1223230(Top 82%)13625(Top 85%)13625(Top 571%)
21M21.00 mi1.00 mi22704+3713583+2813583+2822344(Top 79%)13126(Top 82%)13126(Top 550%)
35K21.75 mi0.75 mi22646+5813541+4213541+4221648(Top 76%)12743(Top 79%)12743(Top 534%)
23M23.00 mi1.25 mi22599+4713497+4413497+4422091(Top 78%)12925(Top 80%)12925(Top 542%)
24M24.00 mi1.00 mi22557+4213448+4913448+4922127(Top 78%)12872(Top 80%)12872(Top 539%)
40K24.85 mi0.85 mi22553+413431+1713431+1722344(Top 79%)12906(Top 80%)12906(Top 541%)
25.2M25.20 mi0.35 mi22557-413429+213429+222426(Top 79%)13004(Top 81%)13004(Top 545%)
Finish26.22 mi1.02 mi22595-3813422+713422+723718(Top 84%)13623(Top 85%)13623(Top 571%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

22943

Males

13808

M45-49

13808

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

23698

Males

14118

M45-49

14118

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

22943

Males

13808

M45-49

13808

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21566

Males

13162

M45-49

13162

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22160

Males

13405

M45-49

13405

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21947

Males

13268

M45-49

13268

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

22528

Males

13407

M45-49

13407

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23230

Males

13625

M45-49

13625

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22344

Males

13126

M45-49

13126

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21648

Males

12743

M45-49

12743

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22091

Males

12925

M45-49

12925

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22127

Males

12872

M45-49

12872

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22344

Males

12906

M45-49

12906

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22426

Males

13004

M45-49

13004

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23718

Males

13623

M45-49

13623

Passing Analysis

Category:
Athletes Passed
1943
Passed By
911
Net Change
+1032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23627
5K → 10K215270-55#23627#23682
10K → 15K29965+234#23682#23448
15K → 20K44510+435#23448#23013
20K → Half647+57#23013#22956
Half → 25K24146+195#22956#22761
25K → 30K188130+58#22761#22703
30K → 20M68106-38#22703#22741
20M → 21M8548+37#22741#22704
21M → 35K7618+58#22704#22646
35K → 23M9649+47#22646#22599
23M → 24M7129+42#22599#22557
24M → 40K4844+4#22557#22553
40K → 25.2M1721-4#22553#22557
25.2M → Finish3068-38#22557#22595
TOTALS1943911+1032
📊

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