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BOSTON MARATHON 2025

Muzhi Ma

Bib: 24590•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:52/mi
27:32
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
55:53
↑ 79↓ 1380.4%
15K· 9.32 mi
10:45/mi
1:29:18
↑ 67↓ 78
20K· 12.43 mi
9:47/mi
1:59:43
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
2:06:07
↑ 19↓ 370.5%
25K· 15.53 mi
10:02/mi
2:30:27
↑ 66↓ 880.2%
30K· 18.64 mi
11:23/mi
3:05:49
↑ 181↓ 1480.2%
20M
9:51/mi
3:19:12
↑ 64↓ 500.2%
21M
9:58/mi
3:29:10
↑ 106↓ 241.6%
35K· 21.75 mi
9:25/mi
3:36:13
↑ 17↓ 861.7%
23M
10:47/mi
3:49:43
↑ 23↓ 630.6%
24M
9:30/mi
3:59:13
↓ 821.3%
40K· 24.85 mi
10:08/mi
4:07:53
↓ 200.3%
25.2M
11:21/mi
4:11:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:12/mi
4:21:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:07
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:15:04
Pace10:18 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3327:328:5227:32
8:52
-
10K
6.21 mi11:56:5455:539:0028:21
9:07
+0:15
15K
9.32 mi12:30:191:29:189:3533:25
10:45
+1:38
20K
12.43 mi13:00:441:59:439:3830:25
9:47
-0:58
Half
13.11 mi13:07:082:06:079:376:24
9:23
-0:24
25K
15.53 mi13:31:282:30:279:4124:20
10:02
+0:39
30K
18.64 mi14:06:503:05:499:5835:22
11:23
+1:21
20M
20.00 mi14:20:133:19:129:5813:23
9:51
-1:32
21M
21.00 mi14:30:113:29:109:589:58
9:58
+0:07
35K
21.75 mi14:37:143:36:139:577:03
9:25
-0:33
23M
23.00 mi14:50:443:49:439:5913:30
10:47
+1:22
24M
24.00 mi15:00:143:59:139:589:30
9:30
-1:17
40K
24.85 mi15:08:544:07:539:588:40
10:08
+0:38
25.2M
25.20 mi15:12:494:11:4810:003:55
11:21
+1:13
Finish
26.22 mi15:22:124:21:119:589:23
9:12
-2:09

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

8:52 /mi

Average Pace

9:58 /mi

Slowest Pace

11:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:43

30% of race

Time at Steady Pace

1:36:16

37% of race

Time at Slower Pace

1:26:12

33% of race

Average Pace: 9:58 /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 mi11:28:3327:328:5227:32
8:52
#21825
10K
6.21 mi11:56:5455:539:0028:21
9:07
#22406
15K
9.32 mi12:30:191:29:189:3533:25
10:45
#24265
20K
12.43 mi13:00:441:59:439:3830:25
9:47
#24125
Half
13.11 mi13:07:082:06:079:376:24
9:23
#24064
25K
15.53 mi13:31:282:30:279:4124:20
10:02
#23946
30K
18.64 mi14:06:503:05:499:5835:22
11:23
#24153
20M
20.00 mi14:20:133:19:129:5813:23
9:51
#23902
21M
21.00 mi14:30:113:29:109:589:58
9:58
#23615
35K
21.75 mi14:37:143:36:139:577:03
9:25
#23469
23M
23.00 mi14:50:443:49:439:5913:30
10:47
#23442
24M
24.00 mi15:00:143:59:139:589:30
9:30
#23283
40K
24.85 mi15:08:544:07:539:588:40
10:08
#23181
25.2M
25.20 mi15:12:494:11:4810:003:55
11:21
#23162
Finish
26.22 mi15:22:124:21:119:589:23
9:12
#23082
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi218258531853126339(Top 93%)10966(Top 90%)10966(Top 1103%)
10K6.21 mi3.10 mi22406-5818840-3098840-30922918(Top 81%)9084(Top 74%)9084(Top 914%)
15K9.32 mi3.11 mi24265-18599823-9839823-98326339(Top 93%)10966(Top 90%)10966(Top 1103%)
20K12.43 mi3.11 mi24125+1409761+629761+6223743(Top 84%)9570(Top 78%)9570(Top 963%)
Half13.11 mi0.68 mi24064+619724+379724+3723236(Top 82%)9281(Top 76%)9281(Top 934%)
25K15.53 mi2.42 mi23946+1189669+559669+5523358(Top 82%)9398(Top 77%)9398(Top 945%)
30K18.64 mi3.11 mi24153-2079813-1449813-14424669(Top 87%)10220(Top 84%)10220(Top 1028%)
20M20.00 mi1.36 mi23902+2519695+1189695+11820470(Top 72%)8066(Top 66%)8066(Top 811%)
21M21.00 mi1.00 mi23615+2879561+1349561+13418205(Top 64%)6909(Top 57%)6909(Top 695%)
35K21.75 mi0.75 mi23469+1469498+639498+6320090(Top 71%)8040(Top 66%)8040(Top 809%)
23M23.00 mi1.25 mi23442+279500-29500-222716(Top 80%)9452(Top 77%)9452(Top 951%)
24M24.00 mi1.00 mi23283+1599437+639437+6319652(Top 69%)7913(Top 65%)7913(Top 796%)
40K24.85 mi0.85 mi23181+1029405+329405+3220921(Top 74%)8630(Top 71%)8630(Top 868%)
25.2M25.20 mi0.35 mi23162+199398+79398+721712(Top 76%)9018(Top 74%)9018(Top 907%)
Finish26.22 mi1.02 mi23082+809366+329366+3220013(Top 70%)8161(Top 67%)8161(Top 821%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

26339

Females

10966

F55-59

10966

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22918

Females

9084

F55-59

9084

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

26339

Females

10966

F55-59

10966

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23743

Females

9570

F55-59

9570

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23236

Females

9281

F55-59

9281

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23358

Females

9398

F55-59

9398

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24669

Females

10220

F55-59

10220

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20470

Females

8066

F55-59

8066

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

18205

Females

6909

F55-59

6909

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20090

Females

8040

F55-59

8040

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22716

Females

9452

F55-59

9452

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19652

Females

7913

F55-59

7913

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

20921

Females

8630

F55-59

8630

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21712

Females

9018

F55-59

9018

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

20013

Females

8161

F55-59

8161

Passing Analysis

Category:
Athletes Passed
1790
Passed By
3047
Net Change
-1257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21825
5K → 10K89670-581#21825#22406
10K → 15K121871-1859#22406#24265
15K → 20K19959+140#24265#24125
20K → Half654+61#24125#24064
Half → 25K18668+118#24064#23946
25K → 30K85292-207#23946#24153
30K → 20M2543+251#24153#23902
20M → 21M2870+287#23902#23615
21M → 35K1482+146#23615#23469
35K → 23M8356+27#23469#23442
23M → 24M1623+159#23442#23283
24M → 40K1075+102#23283#23181
40K → 25.2M267+19#23181#23162
25.2M → Finish877+80#23162#23082
TOTALS17903047-1257
📊

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