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BOSTON MARATHON 2025

Yanhua Zhu

Bib: 21517•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 (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
9:15/mi
28:44
↑ 97↓ 3451.5%
10K· 6.21 mi
9:26/mi
58:02
↑ 79↓ 1380.4%
15K· 9.32 mi
9:30/mi
1:27:34
↑ 67↓ 78
20K· 12.43 mi
9:34/mi
1:57:17
↑ 106↓ 860.1%
Half· 13.11 mi
9:32/mi
2:03:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:36/mi
2:27:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:50/mi
2:57:35
↑ 181↓ 1480.2%
20M
9:58/mi
3:11:07
↑ 64↓ 500.2%
21M
10:13/mi
3:21:20
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:28:13
↑ 17↓ 861.7%
23M
9:37/mi
3:40:16
↑ 23↓ 630.6%
24M
9:19/mi
3:49:35
↓ 821.3%
40K· 24.85 mi
9:34/mi
3:57:46
↓ 200.3%
25.2M
10:21/mi
4:01:20
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
4:10:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:47
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:06:54
Pace9:41 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3628:449:1528:44
9:15
-
10K
6.21 mi11:51:5458:029:2029:18
9:26
+0:11
15K
9.32 mi12:21:261:27:349:2429:32
9:30
+0:04
20K
12.43 mi12:51:091:57:179:2629:43
9:34
+0:04
Half
13.11 mi12:57:392:03:479:276:30
9:32
-0:02
25K
15.53 mi13:20:552:27:039:2823:16
9:36
+0:04
30K
18.64 mi13:51:272:57:359:3230:32
9:50
+0:14
20M
20.00 mi14:04:593:11:079:3313:32
9:58
+0:08
21M
21.00 mi14:15:123:21:209:3510:13
10:13
+0:15
35K
21.75 mi14:22:053:28:139:346:53
9:12
-1:01
23M
23.00 mi14:34:083:40:169:3512:03
9:37
+0:25
24M
24.00 mi14:43:273:49:359:349:19
9:19
-0:18
40K
24.85 mi14:51:383:57:469:348:11
9:34
+0:15
25.2M
25.20 mi14:55:124:01:209:353:34
10:21
+0:47
Finish
26.22 mi15:04:334:10:419:349:21
9:11
-1:10

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

9:11 /mi

Average Pace

9:34 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:56:54

95% of race

Time at Steady Pace

13:47

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:34 /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 mi11:22:3628:449:1528:44
9:15
#23394
10K
6.21 mi11:51:5458:029:2029:18
9:26
#23691
15K
9.32 mi12:21:261:27:349:2429:32
9:30
#23735
20K
12.43 mi12:51:091:57:179:2629:43
9:34
#23592
Half
13.11 mi12:57:392:03:479:276:30
9:32
#23598
25K
15.53 mi13:20:552:27:039:2823:16
9:36
#23311
30K
18.64 mi13:51:272:57:359:3230:32
9:50
#22874
20M
20.00 mi14:04:593:11:079:3313:32
9:58
#22735
21M
21.00 mi14:15:123:21:209:3510:13
10:13
#22523
35K
21.75 mi14:22:053:28:139:346:53
9:12
#22413
23M
23.00 mi14:34:083:40:169:3512:03
9:37
#22210
24M
24.00 mi14:43:273:49:359:349:19
9:19
#22081
40K
24.85 mi14:51:383:57:469:348:11
9:34
#21951
25.2M
25.20 mi14:55:124:01:209:353:34
10:21
#21900
Finish
26.22 mi15:04:334:10:419:349:21
9:11
#21816
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi233949384938423766(Top 84%)9521(Top 78%)9521(Top 525%)
10K6.21 mi3.10 mi23691-2979526-1429526-14223925(Top 84%)9638(Top 79%)9638(Top 532%)
15K9.32 mi3.11 mi23735-449536-109536-1023766(Top 84%)9521(Top 78%)9521(Top 525%)
20K12.43 mi3.11 mi23592+1439459+779459+7723106(Top 81%)9207(Top 75%)9207(Top 508%)
Half13.11 mi0.68 mi23598-69461-29461-223645(Top 83%)9506(Top 78%)9506(Top 524%)
25K15.53 mi2.42 mi23311+2879303+1589303+15822177(Top 78%)8750(Top 72%)8750(Top 483%)
30K18.64 mi3.11 mi22874+4379111+1929111+19221086(Top 74%)8278(Top 68%)8278(Top 457%)
20M20.00 mi1.36 mi22735+1399065+469065+4620811(Top 73%)8257(Top 68%)8257(Top 455%)
21M21.00 mi1.00 mi22523+2128960+1058960+10519103(Top 67%)7387(Top 60%)7387(Top 407%)
35K21.75 mi0.75 mi22413+1108911+498911+4919212(Top 68%)7572(Top 62%)7572(Top 418%)
23M23.00 mi1.25 mi22210+2038835+768835+7619202(Top 68%)7622(Top 62%)7622(Top 420%)
24M24.00 mi1.00 mi22081+1298781+548781+5418919(Top 67%)7519(Top 61%)7519(Top 415%)
40K24.85 mi0.85 mi21951+1308730+518730+5119025(Top 67%)7650(Top 63%)7650(Top 422%)
25.2M25.20 mi0.35 mi21900+518711+198711+1918520(Top 65%)7409(Top 61%)7409(Top 409%)
Finish26.22 mi1.02 mi21816+848681+308681+3019876(Top 70%)8086(Top 66%)8086(Top 446%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23766

Females

9521

F45-49

9521

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23925

Females

9638

F45-49

9638

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23766

Females

9521

F45-49

9521

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

23106

Females

9207

F45-49

9207

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23645

Females

9506

F45-49

9506

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

22177

Females

8750

F45-49

8750

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21086

Females

8278

F45-49

8278

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20811

Females

8257

F45-49

8257

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19103

Females

7387

F45-49

7387

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19212

Females

7572

F45-49

7572

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

19202

Females

7622

F45-49

7622

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

18919

Females

7519

F45-49

7519

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19025

Females

7650

F45-49

7650

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18520

Females

7409

F45-49

7409

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19876

Females

8086

F45-49

8086

Passing Analysis

Category:
Athletes Passed
2365
Passed By
787
Net Change
+1578
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23394
5K → 10K127424-297#23394#23691
10K → 15K150194-44#23691#23735
15K → 20K21067+143#23735#23592
20K → Half1622-6#23592#23598
Half → 25K30215+287#23598#23311
25K → 30K45013+437#23311#22874
30K → 20M15920+139#22874#22735
20M → 21M2175+212#22735#22523
21M → 35K1111+110#22523#22413
35K → 23M2074+203#22413#22210
23M → 24M1312+129#22210#22081
24M → 40K1322+130#22081#21951
40K → 25.2M587+51#21951#21900
25.2M → Finish9511+84#21900#21816
TOTALS2365787+1578
📊

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