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BOSTON MARATHON 2025

Fang Zhu

Bib: 23417•F

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
Top 44%
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
8:18/mi
25:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:24/mi
51:54
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:18:15
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:45:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:48/mi
1:51:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:13:05
↑ 66↓ 880.2%
30K· 18.64 mi
9:30/mi
2:42:35
↑ 181↓ 1480.2%
20M
9:53/mi
2:56:01
↑ 64↓ 500.2%
21M
10:53/mi
3:06:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:13:52
↑ 17↓ 861.7%
23M
10:06/mi
3:26:31
↑ 23↓ 630.6%
24M
10:00/mi
3:36:31
↓ 821.3%
40K· 24.85 mi
10:07/mi
3:45:10
↓ 200.3%
25.2M
11:24/mi
3:49:06
↑ 13↓ 160.2%
Finish· 26.22 mi
10:02/mi
3:59:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:26
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time2:07:53
Pace9:45 /mi
📊Positive Split: 14.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2225:478:1825:47
8:18
-
10K
6.21 mi11:49:2951:548:2126:07
8:24
+0:06
15K
9.32 mi12:15:501:18:158:2426:21
8:29
+0:05
20K
12.43 mi12:43:011:45:268:2927:11
8:45
+0:16
Half
13.11 mi12:49:011:51:268:306:00
8:48
+0:03
25K
15.53 mi13:10:402:13:058:3421:39
8:56
+0:08
30K
18.64 mi13:40:102:42:358:4329:30
9:30
+0:34
20M
20.00 mi13:53:362:56:018:4813:26
9:53
+0:23
21M
21.00 mi14:04:293:06:548:5410:53
10:53
+1:00
35K
21.75 mi14:11:273:13:528:556:58
9:19
-1:34
23M
23.00 mi14:24:063:26:318:5912:39
10:06
+0:47
24M
24.00 mi14:34:063:36:319:0110:00
10:00
-0:06
40K
24.85 mi14:42:453:45:109:048:39
10:07
+0:07
25.2M
25.20 mi14:46:413:49:069:053:56
11:24
+1:17
Finish
26.22 mi14:56:543:59:199:0810:13
10:02
-1:22

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

8:18 /mi

Average Pace

9:08 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:05

56% of race

Time at Steady Pace

49:54

21% of race

Time at Slower Pace

56:20

24% of race

Average Pace: 9:08 /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 mi11:23:2225:478:1825:47
8:18
#18721
10K
6.21 mi11:49:2951:548:2126:07
8:24
#18954
15K
9.32 mi12:15:501:18:158:2426:21
8:29
#19000
20K
12.43 mi12:43:011:45:268:2927:11
8:45
#19177
Half
13.11 mi12:49:011:51:268:306:00
8:48
#19257
25K
15.53 mi13:10:402:13:058:3421:39
8:56
#19311
30K
18.64 mi13:40:102:42:358:4329:30
9:30
#19450
20M
20.00 mi13:53:362:56:018:4813:26
9:53
#19571
21M
21.00 mi14:04:293:06:548:5410:53
10:53
#19712
35K
21.75 mi14:11:273:13:528:556:58
9:19
#19705
23M
23.00 mi14:24:063:26:318:5912:39
10:06
#19815
24M
24.00 mi14:34:063:36:319:0110:00
10:00
#19903
40K
24.85 mi14:42:453:45:109:048:39
10:07
#19975
25.2M
25.20 mi14:46:413:49:069:053:56
11:24
#20017
Finish
26.22 mi14:56:543:59:199:0810:13
10:02
#20222
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi187216754675419218(Top 68%)7016(Top 57%)7016(Top 706%)
10K6.21 mi3.10 mi18954-2336881-1276881-12719242(Top 68%)7025(Top 57%)7025(Top 707%)
15K9.32 mi3.11 mi19000-466913-326913-3219218(Top 68%)7016(Top 57%)7016(Top 706%)
20K12.43 mi3.11 mi19177-1777006-937006-9319694(Top 69%)7314(Top 60%)7314(Top 736%)
Half13.11 mi0.68 mi19257-807060-547060-5420909(Top 74%)7992(Top 65%)7992(Top 804%)
25K15.53 mi2.42 mi19311-547096-367096-3619594(Top 69%)7315(Top 60%)7315(Top 736%)
30K18.64 mi3.11 mi19450-1397211-1157211-11519931(Top 70%)7625(Top 62%)7625(Top 767%)
20M20.00 mi1.36 mi19571-1217303-927303-9220578(Top 72%)8122(Top 66%)8122(Top 817%)
21M21.00 mi1.00 mi19712-1417412-1097412-10921085(Top 74%)8486(Top 69%)8486(Top 854%)
35K21.75 mi0.75 mi19705+77419-77419-719646(Top 69%)7794(Top 64%)7794(Top 784%)
23M23.00 mi1.25 mi19815-1107518-997518-9920827(Top 73%)8464(Top 69%)8464(Top 852%)
24M24.00 mi1.00 mi19903-887595-777595-7721381(Top 75%)8794(Top 72%)8794(Top 885%)
40K24.85 mi0.85 mi19975-727645-507645-5020842(Top 73%)8577(Top 70%)8577(Top 863%)
25.2M25.20 mi0.35 mi20017-427678-337678-3321824(Top 77%)9062(Top 74%)9062(Top 912%)
Finish26.22 mi1.02 mi20222-2057794-1167794-11623019(Top 81%)9667(Top 79%)9667(Top 973%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19218

Females

7016

F55-59

7016

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19242

Females

7025

F55-59

7025

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19218

Females

7016

F55-59

7016

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19694

Females

7314

F55-59

7314

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20909

Females

7992

F55-59

7992

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19594

Females

7315

F55-59

7315

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19931

Females

7625

F55-59

7625

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20578

Females

8122

F55-59

8122

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

21085

Females

8486

F55-59

8486

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19646

Females

7794

F55-59

7794

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

20827

Females

8464

F55-59

8464

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21381

Females

8794

F55-59

8794

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20842

Females

8577

F55-59

8577

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21824

Females

9062

F55-59

9062

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

23019

Females

9667

F55-59

9667

Passing Analysis

Category:
Athletes Passed
1184
Passed By
2685
Net Change
-1501
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18721
5K → 10K172405-233#18721#18954
10K → 15K183229-46#18954#19000
15K → 20K137314-177#19000#19177
20K → Half1595-80#19177#19257
Half → 25K154208-54#19257#19311
25K → 30K174313-139#19311#19450
30K → 20M71192-121#19450#19571
20M → 21M56197-141#19571#19712
21M → 35K4639+7#19712#19705
35K → 23M59169-110#19705#19815
23M → 24M47135-88#19815#19903
24M → 40K39111-72#19903#19975
40K → 25.2M1658-42#19975#20017
25.2M → Finish15220-205#20017#20222
TOTALS11842685-1501
📊

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