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BOSTON MARATHON 2025

Shiiwoei Wang

Bib: 9091•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 49%
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
6:49/mi
21:10
↑ 97↓ 3451.5%
10K· 6.21 mi
6:56/mi
42:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:01/mi
1:04:30
↑ 67↓ 78
20K· 12.43 mi
7:24/mi
1:27:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:32:44
↑ 19↓ 370.5%
25K· 15.53 mi
8:11/mi
1:52:35
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:21:05
↑ 181↓ 1480.2%
20M
9:12/mi
2:33:35
↑ 64↓ 500.2%
21M
10:41/mi
2:44:16
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
2:50:32
↑ 17↓ 861.7%
23M
9:27/mi
3:02:22
↑ 23↓ 630.6%
24M
8:28/mi
3:10:50
↓ 821.3%
40K· 24.85 mi
8:42/mi
3:18:16
↓ 200.3%
25.2M
9:57/mi
3:21:42
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:30:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:44
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:57:19
Pace8:57 /mi
📊Positive Split: 26.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3221:106:4921:10
6:49
-
10K
6.21 mi11:08:0342:416:5221:31
6:56
+0:07
15K
9.32 mi11:29:521:04:306:5521:49
7:01
+0:05
20K
12.43 mi11:52:501:27:287:0222:58
7:24
+0:23
Half
13.11 mi11:58:061:32:447:045:16
7:43
+0:19
25K
15.53 mi12:17:571:52:357:1519:51
8:11
+0:28
30K
18.64 mi12:46:272:21:057:3428:30
9:10
+0:59
20M
20.00 mi12:58:572:33:357:4112:30
9:12
+0:02
21M
21.00 mi13:09:382:44:167:4910:41
10:41
+1:29
35K
21.75 mi13:15:542:50:327:506:16
8:23
-2:18
23M
23.00 mi13:27:443:02:227:5611:50
9:27
+1:04
24M
24.00 mi13:36:123:10:507:578:28
8:28
-0:59
40K
24.85 mi13:43:383:18:167:597:26
8:42
+0:14
25.2M
25.20 mi13:47:043:21:428:003:26
9:57
+1:15
Finish
26.22 mi13:55:253:30:038:018:21
8:12
-1:45

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

6:49 /mi

Average Pace

8:01 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:44

44% of race

Time at Steady Pace

50:22

24% of race

Time at Slower Pace

1:06:57

32% of race

Average Pace: 8:01 /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 mi10:46:3221:106:4921:10
6:49
#6424
10K
6.21 mi11:08:0342:416:5221:31
6:56
#6934
15K
9.32 mi11:29:521:04:306:5521:49
7:01
#7236
20K
12.43 mi11:52:501:27:287:0222:58
7:24
#7748
Half
13.11 mi11:58:061:32:447:045:16
7:43
#7988
25K
15.53 mi12:17:571:52:357:1519:51
8:11
#9097
30K
18.64 mi12:46:272:21:057:3428:30
9:10
#11190
20M
20.00 mi12:58:572:33:357:4112:30
9:12
#11722
21M
21.00 mi13:09:382:44:167:4910:41
10:41
#12479
35K
21.75 mi13:15:542:50:327:506:16
8:23
#12543
23M
23.00 mi13:27:443:02:227:5611:50
9:27
#12992
24M
24.00 mi13:36:123:10:507:578:28
8:28
#13039
40K
24.85 mi13:43:383:18:167:597:26
8:42
#13092
25.2M
25.20 mi13:47:043:21:428:003:26
9:57
#13172
Finish
26.22 mi13:55:253:30:038:018:21
8:12
#13234
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6424585858587774(Top 27%)6799(Top 42%)6799(Top 303%)
10K6.21 mi3.10 mi6934-5106248-3906248-3907440(Top 26%)6597(Top 41%)6597(Top 294%)
15K9.32 mi3.11 mi7236-3026460-2126460-2127774(Top 27%)6799(Top 42%)6799(Top 303%)
20K12.43 mi3.11 mi7748-5126801-3416801-3419843(Top 35%)7927(Top 49%)7927(Top 353%)
Half13.11 mi0.68 mi7988-2406945-1446945-14413499(Top 48%)9687(Top 60%)9687(Top 431%)
25K15.53 mi2.42 mi9097-11097583-6387583-63815205(Top 54%)10305(Top 64%)10305(Top 459%)
30K18.64 mi3.11 mi11190-20938598-10158598-101518505(Top 65%)11615(Top 72%)11615(Top 517%)
20M20.00 mi1.36 mi11722-5328809-2118809-21117761(Top 63%)11142(Top 69%)11142(Top 496%)
21M21.00 mi1.00 mi12479-7579122-3139122-31320544(Top 72%)12275(Top 76%)12275(Top 546%)
35K21.75 mi0.75 mi12543-649127-59127-514695(Top 52%)9577(Top 59%)9577(Top 426%)
23M23.00 mi1.25 mi12992-4499294-1679294-16718438(Top 65%)11183(Top 69%)11183(Top 498%)
24M24.00 mi1.00 mi13039-479278+169278+1614267(Top 50%)9266(Top 58%)9266(Top 412%)
40K24.85 mi0.85 mi13092-539275+39275+314551(Top 51%)9240(Top 57%)9240(Top 411%)
25.2M25.20 mi0.35 mi13172-809301-269301-2616744(Top 59%)10227(Top 64%)10227(Top 455%)
Finish26.22 mi1.02 mi13234-629310-99310-914206(Top 50%)9116(Top 57%)9116(Top 406%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7774

Males

6799

M40-44

6799

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

7440

Males

6597

M40-44

6597

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7774

Males

6799

M40-44

6799

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9843

Males

7927

M40-44

7927

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13499

Males

9687

M40-44

9687

Half→25K

13.1 - 15.5 mi

Top 54%
×4story building
+66ft-88ft

Overall

15205

Males

10305

M40-44

10305

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18505

Males

11615

M40-44

11615

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17761

Males

11142

M40-44

11142

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20544

Males

12275

M40-44

12275

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14695

Males

9577

M40-44

9577

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18438

Males

11183

M40-44

11183

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14267

Males

9266

M40-44

9266

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14551

Males

9240

M40-44

9240

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16744

Males

10227

M40-44

10227

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14206

Males

9116

M40-44

9116

Passing Analysis

Category:
Athletes Passed
514
Passed By
7322
Net Change
-6810
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6424
5K → 10K65575-510#6424#6934
10K → 15K65367-302#6934#7236
15K → 20K39551-512#7236#7748
20K → Half2242-240#7748#7988
Half → 25K141123-1109#7988#9097
25K → 30K142105-2093#9097#11190
30K → 20M38570-532#11190#11722
20M → 21M6763-757#11722#12479
21M → 35K52116-64#12479#12543
35K → 23M35484-449#12543#12992
23M → 24M60107-47#12992#13039
24M → 40K59112-53#13039#13092
40K → 25.2M1494-80#13092#13172
25.2M → Finish51113-62#13172#13234
TOTALS5147322-6810
📊

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