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BOSTON MARATHON 2025

Wei Song Yao

Bib: 11127•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M55-59)
#0 / 1648
Top 33%
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
7:35/mi
23:34
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
47:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:36
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:34:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:39:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:21/mi
1:59:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:24/mi
2:25:47
↑ 181↓ 1480.2%
20M
8:31/mi
2:37:21
↑ 64↓ 500.2%
21M
8:44/mi
2:46:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:51:53
↑ 17↓ 861.7%
23M
8:26/mi
3:02:27
↑ 23↓ 630.6%
24M
8:16/mi
3:10:43
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:17:38
↓ 200.3%
25.2M
8:25/mi
3:20:32
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
3:28:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:48:36
Pace8:17 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5123:347:3523:34
7:35
-
10K
6.21 mi11:14:2647:097:3523:35
7:35
0:00
15K
9.32 mi11:37:531:10:367:3423:27
7:33
-0:02
20K
12.43 mi12:01:451:34:287:3623:52
7:41
+0:08
Half
13.11 mi12:06:431:39:267:354:58
7:17
-0:24
25K
15.53 mi12:26:581:59:417:4220:15
8:21
+1:04
30K
18.64 mi12:53:042:25:477:4926:06
8:24
+0:03
20M
20.00 mi13:04:382:37:217:5211:34
8:31
+0:07
21M
21.00 mi13:13:222:46:057:558:44
8:44
+0:13
35K
21.75 mi13:19:102:51:537:545:48
7:45
-0:59
23M
23.00 mi13:29:443:02:277:5610:34
8:26
+0:41
24M
24.00 mi13:38:003:10:437:578:16
8:16
-0:10
40K
24.85 mi13:44:553:17:387:576:55
8:05
-0:11
25.2M
25.20 mi13:47:493:20:327:572:54
8:25
+0:20
Finish
26.22 mi13:55:193:28:027:567:30
7:22
-1:03

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

7:17 /mi

Average Pace

7:56 /mi

Slowest Pace

8:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:44

54% of race

Time at Steady Pace

1:26:34

42% of race

Time at Slower Pace

8:44

4% 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:50:5123:347:3523:34
7:35
#12976
10K
6.21 mi11:14:2647:097:3523:35
7:35
#12904
15K
9.32 mi11:37:531:10:367:3423:27
7:33
#12623
20K
12.43 mi12:01:451:34:287:3623:52
7:41
#12499
Half
13.11 mi12:06:431:39:267:354:58
7:17
#12360
25K
15.53 mi12:26:581:59:417:4220:15
8:21
#13051
30K
18.64 mi12:53:042:25:477:4926:06
8:24
#13266
20M
20.00 mi13:04:382:37:217:5211:34
8:31
#13263
21M
21.00 mi13:13:222:46:057:558:44
8:44
#13152
35K
21.75 mi13:19:102:51:537:545:48
7:45
#13039
23M
23.00 mi13:29:443:02:277:5610:34
8:26
#13023
24M
24.00 mi13:38:003:10:437:578:16
8:16
#13010
40K
24.85 mi13:44:553:17:387:576:55
8:05
#12909
25.2M
25.20 mi13:47:493:20:327:572:54
8:25
#12813
Finish
26.22 mi13:55:193:28:027:567:30
7:22
#12592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi129769638963812166(Top 43%)9137(Top 57%)9137(Top 554%)
10K6.21 mi3.10 mi12904+729581+579581+5712917(Top 45%)9555(Top 59%)9555(Top 580%)
15K9.32 mi3.11 mi12623+2819420+1619420+16112166(Top 43%)9137(Top 57%)9137(Top 554%)
20K12.43 mi3.11 mi12499+1249319+1019319+10112229(Top 43%)9068(Top 56%)9068(Top 550%)
Half13.11 mi0.68 mi12360+1399250+699250+699815(Top 35%)7943(Top 49%)7943(Top 482%)
25K15.53 mi2.42 mi13051-6919509-2599509-25916232(Top 57%)10742(Top 67%)10742(Top 652%)
30K18.64 mi3.11 mi13266-2159530-219530-2114135(Top 50%)9643(Top 60%)9643(Top 585%)
20M20.00 mi1.36 mi13263+39497+339497+3313842(Top 49%)9365(Top 58%)9365(Top 568%)
21M21.00 mi1.00 mi13152+1119425+729425+7211868(Top 42%)8316(Top 52%)8316(Top 505%)
35K21.75 mi0.75 mi13039+1139361+649361+6410454(Top 37%)7608(Top 47%)7608(Top 462%)
23M23.00 mi1.25 mi13023+169306+559306+5512907(Top 45%)8653(Top 54%)8653(Top 525%)
24M24.00 mi1.00 mi13010+139264+429264+4213001(Top 46%)8648(Top 54%)8648(Top 525%)
40K24.85 mi0.85 mi12909+1019190+749190+7410771(Top 38%)7449(Top 46%)7449(Top 452%)
25.2M25.20 mi0.35 mi12813+969140+509140+508256(Top 29%)6080(Top 38%)6080(Top 369%)
Finish26.22 mi1.02 mi12592+2219014+1269014+1268198(Top 29%)6031(Top 37%)6031(Top 366%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12166

Males

9137

M55-59

9137

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12917

Males

9555

M55-59

9555

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12166

Males

9137

M55-59

9137

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12229

Males

9068

M55-59

9068

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9815

Males

7943

M55-59

7943

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

16232

Males

10742

M55-59

10742

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14135

Males

9643

M55-59

9643

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13842

Males

9365

M55-59

9365

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11868

Males

8316

M55-59

8316

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10454

Males

7608

M55-59

7608

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12907

Males

8653

M55-59

8653

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

13001

Males

8648

M55-59

8648

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10771

Males

7449

M55-59

7449

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8256

Males

6080

M55-59

6080

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8198

Males

6031

M55-59

6031

Passing Analysis

Category:
Athletes Passed
2340
Passed By
1956
Net Change
+384
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12976
5K → 10K320248+72#12976#12904
10K → 15K35978+281#12904#12623
15K → 20K243119+124#12623#12499
20K → Half1390+139#12499#12360
Half → 25K49740-691#12360#13051
25K → 30K183398-215#13051#13266
30K → 20M115112+3#13266#13263
20M → 21M16352+111#13263#13152
21M → 35K1185+113#13152#13039
35K → 23M119103+16#13039#13023
23M → 24M8269+13#13023#13010
24M → 40K12322+101#13010#12909
40K → 25.2M982+96#12909#12813
25.2M → Finish2298+221#12813#12592
TOTALS23401956+384
📊

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