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BOSTON MARATHON 2025

Shu-Ching Wang

Bib: 21475•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
9:17/mi
28:49
↑ 97↓ 3451.5%
10K· 6.21 mi
9:17/mi
57:41
↑ 79↓ 1380.4%
15K· 9.32 mi
9:16/mi
1:26:27
↑ 67↓ 78
20K· 12.43 mi
9:25/mi
1:55:42
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
2:01:52
↑ 19↓ 370.5%
25K· 15.53 mi
9:15/mi
2:24:18
↑ 66↓ 880.2%
30K· 18.64 mi
9:43/mi
2:54:28
↑ 181↓ 1480.2%
20M
9:55/mi
3:07:57
↑ 64↓ 500.2%
21M
10:25/mi
3:18:22
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:25:34
↑ 17↓ 861.7%
23M
9:59/mi
3:38:04
↑ 23↓ 630.6%
24M
9:49/mi
3:47:53
↓ 821.3%
40K· 24.85 mi
9:52/mi
3:56:19
↓ 200.3%
25.2M
11:42/mi
4:00:21
↑ 13↓ 160.2%
Finish· 26.22 mi
9:35/mi
4:10:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:52
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:08:15
Pace9:47 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:0428:499:1728:49
9:17
-
10K
6.21 mi11:58:5657:419:1728:52
9:17
0:00
15K
9.32 mi12:27:421:26:279:1728:46
9:16
-0:01
20K
12.43 mi12:56:571:55:429:1929:15
9:25
+0:09
Half
13.11 mi13:03:072:01:529:186:10
9:02
-0:23
25K
15.53 mi13:25:332:24:189:1722:26
9:15
+0:13
30K
18.64 mi13:55:432:54:289:2230:10
9:43
+0:28
20M
20.00 mi14:09:123:07:579:2413:29
9:55
+0:12
21M
21.00 mi14:19:373:18:229:2710:25
10:25
+0:30
35K
21.75 mi14:26:493:25:349:277:12
9:37
-0:48
23M
23.00 mi14:39:193:38:049:2912:30
9:59
+0:22
24M
24.00 mi14:49:083:47:539:309:49
9:49
-0:10
40K
24.85 mi14:57:343:56:199:308:26
9:52
+0:03
25.2M
25.20 mi15:01:364:00:219:324:02
11:42
+1:50
Finish
26.22 mi15:11:224:10:079:339:46
9:35
-2:07

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

9:02 /mi

Average Pace

9:33 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:03

46% of race

Time at Steady Pace

1:48:07

43% of race

Time at Slower Pace

26:57

11% of race

Average Pace: 9:32 /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 mi11:30:0428:499:1728:49
9:17
#23486
10K
6.21 mi11:58:5657:419:1728:52
9:17
#23498
15K
9.32 mi12:27:421:26:279:1728:46
9:16
#23355
20K
12.43 mi12:56:571:55:429:1929:15
9:25
#23173
Half
13.11 mi13:03:072:01:529:186:10
9:02
#23111
25K
15.53 mi13:25:332:24:189:1722:26
9:15
#22746
30K
18.64 mi13:55:432:54:289:2230:10
9:43
#22360
20M
20.00 mi14:09:123:07:579:2413:29
9:55
#22241
21M
21.00 mi14:19:373:18:229:2710:25
10:25
#22063
35K
21.75 mi14:26:493:25:349:277:12
9:37
#22008
23M
23.00 mi14:39:193:38:049:2912:30
9:59
#21892
24M
24.00 mi14:49:083:47:539:309:49
9:49
#21830
40K
24.85 mi14:57:343:56:199:308:26
9:52
#21767
25.2M
25.20 mi15:01:364:00:219:324:02
11:42
#21773
Finish
26.22 mi15:11:224:10:079:339:46
9:35
#21756
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi234869425942523075(Top 81%)9135(Top 75%)9135(Top 504%)
10K6.21 mi3.10 mi23498-129419+69419+623498(Top 83%)9409(Top 77%)9409(Top 519%)
15K9.32 mi3.11 mi23355+1439323+969323+9623075(Top 81%)9135(Top 75%)9135(Top 504%)
20K12.43 mi3.11 mi23173+1829219+1049219+10422621(Top 80%)8930(Top 73%)8930(Top 493%)
Half13.11 mi0.68 mi23111+629187+329187+3222010(Top 77%)8615(Top 70%)8615(Top 475%)
25K15.53 mi2.42 mi22746+3659001+1869001+18620993(Top 74%)8101(Top 66%)8101(Top 447%)
30K18.64 mi3.11 mi22360+3868829+1728829+17220728(Top 73%)8071(Top 66%)8071(Top 445%)
20M20.00 mi1.36 mi22241+1198780+498780+4920689(Top 73%)8184(Top 67%)8184(Top 451%)
21M21.00 mi1.00 mi22063+1788700+808700+8019772(Top 70%)7781(Top 64%)7781(Top 429%)
35K21.75 mi0.75 mi22008+558680+208680+2020790(Top 73%)8391(Top 69%)8391(Top 463%)
23M23.00 mi1.25 mi21892+1168656+248656+2420453(Top 72%)8274(Top 68%)8274(Top 456%)
24M24.00 mi1.00 mi21830+628646+108646+1020790(Top 73%)8498(Top 69%)8498(Top 469%)
40K24.85 mi0.85 mi21767+638632+148632+1420024(Top 70%)8178(Top 67%)8178(Top 451%)
25.2M25.20 mi0.35 mi21773-68641-98641-922573(Top 79%)9449(Top 77%)9449(Top 521%)
Finish26.22 mi1.02 mi21756+178645-48645-421506(Top 76%)8913(Top 73%)8913(Top 492%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

23075

Females

9135

F45-49

9135

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

23498

Females

9409

F45-49

9409

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

23075

Females

9135

F45-49

9135

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

22621

Females

8930

F45-49

8930

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

22010

Females

8615

F45-49

8615

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20993

Females

8101

F45-49

8101

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20728

Females

8071

F45-49

8071

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20689

Females

8184

F45-49

8184

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19772

Females

7781

F45-49

7781

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20790

Females

8391

F45-49

8391

35K→23M

21.8 - 23.0 mi

Top 72%
×5story building
+23ft-63ft

Overall

20453

Females

8274

F45-49

8274

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20790

Females

8498

F45-49

8498

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

20024

Females

8178

F45-49

8178

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22573

Females

9449

F45-49

9449

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

21506

Females

8913

F45-49

8913

Passing Analysis

Category:
Athletes Passed
2344
Passed By
614
Net Change
+1730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23486
5K → 10K226238-12#23486#23498
10K → 15K248105+143#23498#23355
15K → 20K23957+182#23355#23173
20K → Half653+62#23173#23111
Half → 25K3738+365#23111#22746
25K → 30K41327+386#22746#22360
30K → 20M13819+119#22360#22241
20M → 21M18810+178#22241#22063
21M → 35K6914+55#22063#22008
35K → 23M14630+116#22008#21892
23M → 24M8018+62#21892#21830
24M → 40K8421+63#21830#21767
40K → 25.2M2228-6#21767#21773
25.2M → Finish5336+17#21773#21756
TOTALS2344614+1730
📊

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