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BOSTON MARATHON 2025

Aihua Zhu

Bib: 24108•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
9:09/mi
28:25
↑ 97↓ 3451.5%
10K· 6.21 mi
9:36/mi
58:15
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:26:33
↑ 67↓ 78
20K· 12.43 mi
9:13/mi
1:55:12
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
2:01:22
↑ 19↓ 370.5%
25K· 15.53 mi
9:22/mi
2:24:04
↑ 66↓ 880.2%
30K· 18.64 mi
9:42/mi
2:54:13
↑ 181↓ 1480.2%
20M
9:59/mi
3:07:47
↑ 64↓ 500.2%
21M
10:41/mi
3:18:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:49/mi
3:25:49
↑ 17↓ 861.7%
23M
10:19/mi
3:38:44
↑ 23↓ 630.6%
24M
10:08/mi
3:48:52
↓ 821.3%
40K· 24.85 mi
10:58/mi
3:58:15
↓ 200.3%
25.2M
11:33/mi
4:02:14
↑ 13↓ 160.2%
Finish· 26.22 mi
10:02/mi
4:12:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:22
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:11:05
Pace10:00 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0428:259:0928:25
9:09
-
10K
6.21 mi11:56:5458:159:2229:50
9:36
+0:27
15K
9.32 mi12:25:121:26:339:1728:18
9:07
-0:29
20K
12.43 mi12:53:511:55:129:1628:39
9:13
+0:06
Half
13.11 mi13:00:012:01:229:156:10
9:02
-0:11
25K
15.53 mi13:22:432:24:049:1622:42
9:22
+0:20
30K
18.64 mi13:52:522:54:139:2130:09
9:42
+0:20
20M
20.00 mi14:06:263:07:479:2313:34
9:59
+0:17
21M
21.00 mi14:17:073:18:289:2710:41
10:41
+0:42
35K
21.75 mi14:24:283:25:499:287:21
9:49
-0:52
23M
23.00 mi14:37:233:38:449:3112:55
10:19
+0:30
24M
24.00 mi14:47:313:48:529:3210:08
10:08
-0:11
40K
24.85 mi14:56:543:58:159:359:23
10:58
+0:50
25.2M
25.20 mi15:00:534:02:149:373:59
11:33
+0:35
Finish
26.22 mi15:11:064:12:279:3810:13
10:02
-1:31

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

9:38 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:14

45% of race

Time at Steady Pace

1:41:15

40% of race

Time at Slower Pace

36:58

15% of race

Average Pace: 9:38 /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 mi11:27:0428:259:0928:25
9:09
#23033
10K
6.21 mi11:56:5458:159:2229:50
9:36
#23808
15K
9.32 mi12:25:121:26:339:1728:18
9:07
#23391
20K
12.43 mi12:53:511:55:129:1628:39
9:13
#23053
Half
13.11 mi13:00:012:01:229:156:10
9:02
#22996
25K
15.53 mi13:22:432:24:049:1622:42
9:22
#22698
30K
18.64 mi13:52:522:54:139:2130:09
9:42
#22318
20M
20.00 mi14:06:263:07:479:2313:34
9:59
#22215
21M
21.00 mi14:17:073:18:289:2710:41
10:41
#22087
35K
21.75 mi14:24:283:25:499:287:21
9:49
#22049
23M
23.00 mi14:37:233:38:449:3112:55
10:19
#21991
24M
24.00 mi14:47:313:48:529:3210:08
10:08
#21978
40K
24.85 mi14:56:543:58:159:359:23
10:58
#22020
25.2M
25.20 mi15:00:534:02:149:373:59
11:33
#22017
Finish
26.22 mi15:11:064:12:279:3810:13
10:02
#22054
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi230339187918722501(Top 79%)8834(Top 72%)8834(Top 889%)
10K6.21 mi3.10 mi23808-7759575-3889575-38824372(Top 86%)9893(Top 81%)9893(Top 995%)
15K9.32 mi3.11 mi23391+4179344+2319344+23122501(Top 79%)8834(Top 72%)8834(Top 889%)
20K12.43 mi3.11 mi23053+3389157+1879157+18721978(Top 77%)8571(Top 70%)8571(Top 862%)
Half13.11 mi0.68 mi22996+579122+359122+3522017(Top 78%)8622(Top 71%)8622(Top 867%)
25K15.53 mi2.42 mi22698+2988976+1468976+14621419(Top 75%)8321(Top 68%)8321(Top 837%)
30K18.64 mi3.11 mi22318+3808805+1718805+17120712(Top 73%)8060(Top 66%)8060(Top 811%)
20M20.00 mi1.36 mi22215+1038761+448761+4420906(Top 74%)8312(Top 68%)8312(Top 836%)
21M21.00 mi1.00 mi22087+1288710+518710+5120579(Top 72%)8235(Top 67%)8235(Top 828%)
35K21.75 mi0.75 mi22049+388702+88702+821416(Top 75%)8731(Top 71%)8731(Top 878%)
23M23.00 mi1.25 mi21991+588714-128714-1221492(Top 76%)8812(Top 72%)8812(Top 887%)
24M24.00 mi1.00 mi21978+138726-128726-1221758(Top 77%)9007(Top 74%)9007(Top 906%)
40K24.85 mi0.85 mi22020-428768-428768-4223095(Top 81%)9749(Top 80%)9749(Top 981%)
25.2M25.20 mi0.35 mi22017+38774-68774-622208(Top 78%)9258(Top 76%)9258(Top 931%)
Finish26.22 mi1.02 mi22054-378810-368810-3623022(Top 81%)9670(Top 79%)9670(Top 973%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22501

Females

8834

F55-59

8834

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24372

Females

9893

F55-59

9893

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22501

Females

8834

F55-59

8834

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21978

Females

8571

F55-59

8571

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22017

Females

8622

F55-59

8622

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21419

Females

8321

F55-59

8321

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20712

Females

8060

F55-59

8060

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

20906

Females

8312

F55-59

8312

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20579

Females

8235

F55-59

8235

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21416

Females

8731

F55-59

8731

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21492

Females

8812

F55-59

8812

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21758

Females

9007

F55-59

9007

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23095

Females

9749

F55-59

9749

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22208

Females

9258

F55-59

9258

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

23022

Females

9670

F55-59

9670

Passing Analysis

Category:
Athletes Passed
2239
Passed By
1260
Net Change
+979
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23033
5K → 10K46821-775#23033#23808
10K → 15K44124+417#23808#23391
15K → 20K35719+338#23391#23053
20K → Half636+57#23053#22996
Half → 25K31820+298#22996#22698
25K → 30K40828+380#22698#22318
30K → 20M12320+103#22318#22215
20M → 21M15022+128#22215#22087
21M → 35K6527+38#22087#22049
35K → 23M10749+58#22049#21991
23M → 24M6249+13#21991#21978
24M → 40K3678-42#21978#22020
40K → 25.2M2421+3#22020#22017
25.2M → Finish3976-37#22017#22054
TOTALS22391260+979
📊

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