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BOSTON MARATHON 2025

Zhang Hui

Bib: 24903•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 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:55
Rank: #20832
Start → 5K
26:55 | 8:40/mi
10K· 6.21 mi
53:41
Rank: #20613 (+219)
5K → 10K
26:46 | 8:37/mi
15K· 9.32 mi
1:20:43
Rank: #20540 (+73)
10K → 15K
27:02 | 8:42/mi
20K· 12.43 mi
1:48:34
Rank: #20612 (-72)
15K → 20K
27:51 | 8:58/mi
Half· 13.11 mi
1:54:24
Rank: #20557 (+55)
20K → Half
5:50 | 8:33/mi
25K· 15.53 mi
2:17:00
Rank: #20713 (-156)
Half → 25K
22:36 | 9:19/mi
30K· 18.64 mi
2:46:56
Rank: #20662 (+51)
25K → 30K
29:56 | 9:38/mi
20M
2:59:35
Rank: #20461 (+201)
30K → 20M
12:39 | 9:19/mi
21M
3:10:06
Rank: #20443 (+18)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:16:55
Rank: #20366 (+77)
21M → 35K
6:49 | 9:07/mi
23M
3:28:27
Rank: #20200 (+166)
35K → 23M
11:32 | 9:13/mi
24M
3:37:29
Rank: #20107 (+93)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:45:09
Rank: #19967 (+140)
24M → 40K
7:40 | 8:58/mi
25.2M
3:48:51
Rank: #19957 (+10)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
3:57:52
Rank: #19910 (+47)
25.2M → Finish
9:01 | 8:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:24
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:03:28
Pace9:25 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:4826:558:4026:55
8:40
-
10K
6.21 mi11:53:3453:418:3826:46
8:37
-0:03
15K
9.32 mi12:20:361:20:438:4027:02
8:42
+0:05
20K
12.43 mi12:48:271:48:348:4427:51
8:58
+0:16
Half
13.11 mi12:54:171:54:248:445:50
8:33
-0:25
25K
15.53 mi13:16:532:17:008:4922:36
9:19
+0:46
30K
18.64 mi13:46:492:46:568:5729:56
9:38
+0:19
20M
20.00 mi13:59:282:59:358:5912:39
9:19
-0:19
21M
21.00 mi14:09:593:10:069:0310:31
10:31
+1:12
35K
21.75 mi14:16:483:16:559:036:49
9:07
-1:24
23M
23.00 mi14:28:203:28:279:0411:32
9:13
+0:06
24M
24.00 mi14:37:223:37:299:049:02
9:02
-0:11
40K
24.85 mi14:45:023:45:099:047:40
8:58
-0:04
25.2M
25.20 mi14:48:443:48:519:053:42
10:44
+1:46
Finish
26.22 mi14:57:453:57:529:059:01
8:51
-1:53

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

8:33 /mi

Average Pace

9:05 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:33

36% of race

Time at Steady Pace

1:47:10

45% of race

Time at Slower Pace

44:09

19% of race

Average Pace: 9:04 /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 mi11:26:4826:558:4026:55
8:40
#20832
10K
6.21 mi11:53:3453:418:3826:46
8:37
#20613
15K
9.32 mi12:20:361:20:438:4027:02
8:42
#20540
20K
12.43 mi12:48:271:48:348:4427:51
8:58
#20612
Half
13.11 mi12:54:171:54:248:445:50
8:33
#20557
25K
15.53 mi13:16:532:17:008:4922:36
9:19
#20713
30K
18.64 mi13:46:492:46:568:5729:56
9:38
#20662
20M
20.00 mi13:59:282:59:358:5912:39
9:19
#20461
21M
21.00 mi14:09:593:10:069:0310:31
10:31
#20443
35K
21.75 mi14:16:483:16:559:036:49
9:07
#20366
23M
23.00 mi14:28:203:28:279:0411:32
9:13
#20200
24M
24.00 mi14:37:223:37:299:049:02
9:02
#20107
40K
24.85 mi14:45:023:45:099:047:40
8:58
#19967
25.2M
25.20 mi14:48:443:48:519:053:42
10:44
#19957
Finish
26.22 mi14:57:453:57:529:059:01
8:51
#19910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi208327989798920507(Top 72%)7717(Top 63%)7717(Top 776%)
10K6.21 mi3.10 mi20613+2197838+1517838+15120441(Top 72%)7710(Top 63%)7710(Top 776%)
15K9.32 mi3.11 mi20540+737776+627776+6220507(Top 72%)7717(Top 63%)7717(Top 776%)
20K12.43 mi3.11 mi20612-727825-497825-4920793(Top 73%)7944(Top 65%)7944(Top 799%)
Half13.11 mi0.68 mi20557+557789+367789+3619579(Top 69%)7235(Top 59%)7235(Top 728%)
25K15.53 mi2.42 mi20713-1567881-927881-9221264(Top 75%)8240(Top 67%)8240(Top 829%)
30K18.64 mi3.11 mi20662+517906-257906-2520497(Top 72%)7930(Top 65%)7930(Top 798%)
20M20.00 mi1.36 mi20461+2017813+937813+9318361(Top 65%)6934(Top 57%)6934(Top 698%)
21M21.00 mi1.00 mi20443+187823-107823-1020070(Top 71%)7948(Top 65%)7948(Top 800%)
35K21.75 mi0.75 mi20366+777795+287795+2818804(Top 66%)7355(Top 60%)7355(Top 740%)
23M23.00 mi1.25 mi20200+1667725+707725+7017411(Top 61%)6674(Top 55%)6674(Top 671%)
24M24.00 mi1.00 mi20107+937695+307695+3017570(Top 62%)6806(Top 56%)6806(Top 685%)
40K24.85 mi0.85 mi19967+1407638+577638+5716163(Top 57%)6144(Top 50%)6144(Top 618%)
25.2M25.20 mi0.35 mi19957+107643-57643-519848(Top 70%)8076(Top 66%)8076(Top 812%)
Finish26.22 mi1.02 mi19910+477636+77636+718312(Top 64%)7250(Top 59%)7250(Top 729%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20507

Females

7717

F55-59

7717

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20441

Females

7710

F55-59

7710

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20507

Females

7717

F55-59

7717

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

20793

Females

7944

F55-59

7944

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19579

Females

7235

F55-59

7235

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21264

Females

8240

F55-59

8240

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20497

Females

7930

F55-59

7930

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

18361

Females

6934

F55-59

6934

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20070

Females

7948

F55-59

7948

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18804

Females

7355

F55-59

7355

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

17411

Females

6674

F55-59

6674

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17570

Females

6806

F55-59

6806

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

16163

Females

6144

F55-59

6144

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19848

Females

8076

F55-59

8076

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18312

Females

7250

F55-59

7250

Passing Analysis

Category:
Athletes Passed
2174
Passed By
1252
Net Change
+922
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20832
5K → 10K405186+219#20832#20613
10K → 15K231158+73#20613#20540
15K → 20K157229-72#20540#20612
20K → Half7116+55#20612#20557
Half → 25K101257-156#20557#20713
25K → 30K245194+51#20713#20662
30K → 20M21615+201#20662#20461
20M → 21M9173+18#20461#20443
21M → 35K9518+77#20443#20366
35K → 23M18418+166#20366#20200
23M → 24M11017+93#20200#20107
24M → 40K1444+140#20107#19967
40K → 25.2M3525+10#19967#19957
25.2M → Finish8942+47#19957#19910
TOTALS21741252+922
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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