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BOSTON MARATHON 2025

Ling Zhu

Bib: 22244•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 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:45
Rank: #18645
Start → 5K
25:45 | 8:17/mi
10K· 6.21 mi
52:16
Rank: #19314 (-669)
5K → 10K
26:31 | 8:32/mi
15K· 9.32 mi
1:22:16
Rank: #21411 (-2097)
10K → 15K
30:00 | 9:39/mi
20K· 12.43 mi
1:49:41
Rank: #21052 (+359)
15K → 20K
27:25 | 8:49/mi
Half· 13.11 mi
1:55:38
Rank: #21031 (+21)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:17:01
Rank: #20717 (+314)
Half → 25K
21:23 | 8:49/mi
30K· 18.64 mi
2:45:26
Rank: #20265 (+452)
25K → 30K
28:25 | 9:09/mi
20M
2:58:01
Rank: #20086 (+179)
30K → 20M
12:35 | 9:16/mi
21M
3:07:52
Rank: #19933 (+153)
20M → 21M
9:51 | 9:51/mi
35K· 21.75 mi
3:14:35
Rank: #19863 (+70)
21M → 35K
6:43 | 8:59/mi
23M
3:25:33
Rank: #19592 (+271)
35K → 23M
10:58 | 8:46/mi
24M
3:34:14
Rank: #19438 (+154)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:41:50
Rank: #19297 (+141)
24M → 40K
7:36 | 8:53/mi
25.2M
3:45:07
Rank: #19203 (+94)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:53:35
Rank: #19056 (+147)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:38
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time1:57:57
Pace9:00 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2225:458:1725:45
8:17
-
10K
6.21 mi11:46:5352:168:2526:31
8:32
+0:15
15K
9.32 mi12:16:531:22:168:5030:00
9:39
+1:07
20K
12.43 mi12:44:181:49:418:5027:25
8:49
-0:50
Half
13.11 mi12:50:151:55:388:495:57
8:43
-0:06
25K
15.53 mi13:11:382:17:018:4921:23
8:49
+0:06
30K
18.64 mi13:40:032:45:268:5228:25
9:09
+0:20
20M
20.00 mi13:52:382:58:018:5412:35
9:16
+0:07
21M
21.00 mi14:02:293:07:528:579:51
9:51
+0:35
35K
21.75 mi14:09:123:14:358:576:43
8:59
-0:52
23M
23.00 mi14:20:103:25:338:5610:58
8:46
-0:13
24M
24.00 mi14:28:513:34:148:568:41
8:41
-0:05
40K
24.85 mi14:36:273:41:508:567:36
8:53
+0:12
25.2M
25.20 mi14:39:443:45:078:563:17
9:31
+0:38
Finish
26.22 mi14:48:123:53:358:558:28
8:19
-1:12

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

8:17 /mi

Average Pace

8:55 /mi

Slowest Pace

9:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:27

64% of race

Time at Steady Pace

1:14:17

32% of race

Time at Slower Pace

9:51

4% of race

Average Pace: 8:55 /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 mi11:20:2225:458:1725:45
8:17
#18645
10K
6.21 mi11:46:5352:168:2526:31
8:32
#19314
15K
9.32 mi12:16:531:22:168:5030:00
9:39
#21411
20K
12.43 mi12:44:181:49:418:5027:25
8:49
#21052
Half
13.11 mi12:50:151:55:388:495:57
8:43
#21031
25K
15.53 mi13:11:382:17:018:4921:23
8:49
#20717
30K
18.64 mi13:40:032:45:268:5228:25
9:09
#20265
20M
20.00 mi13:52:382:58:018:5412:35
9:16
#20086
21M
21.00 mi14:02:293:07:528:579:51
9:51
#19933
35K
21.75 mi14:09:123:14:358:576:43
8:59
#19863
23M
23.00 mi14:20:103:25:338:5610:58
8:46
#19592
24M
24.00 mi14:28:513:34:148:568:41
8:41
#19438
40K
24.85 mi14:36:273:41:508:567:36
8:53
#19297
25.2M
25.20 mi14:39:443:45:078:563:17
9:31
#19203
Finish
26.22 mi14:48:123:53:358:558:28
8:19
#19056
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi186456708670824158(Top 85%)9757(Top 80%)9757(Top 982%)
10K6.21 mi3.10 mi19314-6697073-3657073-36520008(Top 70%)7468(Top 61%)7468(Top 751%)
15K9.32 mi3.11 mi21411-20978255-11828255-118224158(Top 85%)9757(Top 80%)9757(Top 982%)
20K12.43 mi3.11 mi21052+3598058+1978058+19720074(Top 71%)7517(Top 61%)7517(Top 756%)
Half13.11 mi0.68 mi21031+218047+118047+1120495(Top 72%)7743(Top 63%)7743(Top 779%)
25K15.53 mi2.42 mi20717+3147884+1637884+16319037(Top 67%)6995(Top 57%)6995(Top 704%)
30K18.64 mi3.11 mi20265+4527683+2017683+20118398(Top 65%)6784(Top 55%)6784(Top 682%)
20M20.00 mi1.36 mi20086+1797597+867597+8618111(Top 64%)6780(Top 55%)6780(Top 682%)
21M21.00 mi1.00 mi19933+1537533+647533+6417724(Top 62%)6657(Top 54%)6657(Top 670%)
35K21.75 mi0.75 mi19863+707507+267507+2618155(Top 64%)6991(Top 57%)6991(Top 703%)
23M23.00 mi1.25 mi19592+2717393+1147393+11414926(Top 53%)5306(Top 43%)5306(Top 534%)
24M24.00 mi1.00 mi19438+1547327+667327+6615687(Top 55%)5753(Top 47%)5753(Top 579%)
40K24.85 mi0.85 mi19297+1417261+667261+6615740(Top 55%)5924(Top 48%)5924(Top 596%)
25.2M25.20 mi0.35 mi19203+947227+347227+3414800(Top 52%)5470(Top 45%)5470(Top 550%)
Finish26.22 mi1.02 mi19056+1477161+667161+6615015(Top 53%)5500(Top 45%)5500(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24158

Females

9757

F55-59

9757

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

20008

Females

7468

F55-59

7468

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24158

Females

9757

F55-59

9757

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20074

Females

7517

F55-59

7517

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20495

Females

7743

F55-59

7743

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

19037

Females

6995

F55-59

6995

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18398

Females

6784

F55-59

6784

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18111

Females

6780

F55-59

6780

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17724

Females

6657

F55-59

6657

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18155

Females

6991

F55-59

6991

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

14926

Females

5306

F55-59

5306

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15687

Females

5753

F55-59

5753

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15740

Females

5924

F55-59

5924

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14800

Females

5470

F55-59

5470

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

15015

Females

5500

F55-59

5500

Passing Analysis

Category:
Athletes Passed
2630
Passed By
3041
Net Change
-411
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18645
5K → 10K83752-669#18645#19314
10K → 15K92106-2097#19314#21411
15K → 20K40243+359#21411#21052
20K → Half4221+21#21052#21031
Half → 25K33218+314#21031#20717
25K → 30K47927+452#20717#20265
30K → 20M19617+179#20265#20086
20M → 21M17421+153#20086#19933
21M → 35K8414+70#19933#19863
35K → 23M2787+271#19863#19592
23M → 24M1595+154#19592#19438
24M → 40K1476+141#19438#19297
40K → 25.2M940+94#19297#19203
25.2M → Finish1514+147#19203#19056
TOTALS26303041-411
📊

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