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BOSTON MARATHON 2025

Lili Zhang

Bib: 13259•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:06
Rank: #19316
Start → 5K
26:06 | 8:24/mi
10K· 6.21 mi
52:05
Rank: #19130 (+186)
5K → 10K
25:59 | 8:22/mi
15K· 9.32 mi
1:18:05
Rank: #18895 (+235)
10K → 15K
26:00 | 8:22/mi
20K· 12.43 mi
1:44:14
Rank: #18576 (+319)
15K → 20K
26:09 | 8:25/mi
Half· 13.11 mi
1:49:53
Rank: #18527 (+49)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:10:03
Rank: #18072 (+455)
Half → 25K
20:10 | 8:19/mi
30K· 18.64 mi
2:35:48
Rank: #17184 (+888)
25K → 30K
25:45 | 8:17/mi
20M
2:47:13
Rank: #16889 (+295)
30K → 20M
11:25 | 8:24/mi
21M
2:55:56
Rank: #16569 (+320)
20M → 21M
8:43 | 8:43/mi
35K· 21.75 mi
3:02:01
Rank: #16412 (+157)
21M → 35K
6:05 | 8:08/mi
23M
3:12:30
Rank: #16140 (+272)
35K → 23M
10:29 | 8:22/mi
24M
3:20:34
Rank: #15949 (+191)
23M → 24M
8:04 | 8:04/mi
40K· 24.85 mi
3:27:33
Rank: #15747 (+202)
24M → 40K
6:59 | 8:10/mi
25.2M
3:30:32
Rank: #15647 (+100)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:37:59
Rank: #15377 (+270)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:49:53
Pace8:23 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:06
Pace8:15 /mi
📊Negative Split: 1.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3926:068:2426:06
8:24
-
10K
6.21 mi11:21:3852:058:2325:59
8:22
-0:02
15K
9.32 mi11:47:381:18:058:2326:00
8:22
0:00
20K
12.43 mi12:13:471:44:148:2326:09
8:25
+0:03
Half
13.11 mi12:19:261:49:538:235:39
8:17
-0:08
25K
15.53 mi12:39:362:10:038:2220:10
8:19
+0:02
30K
18.64 mi13:05:212:35:488:2125:45
8:17
-0:02
20M
20.00 mi13:16:462:47:138:2211:25
8:24
+0:07
21M
21.00 mi13:25:292:55:568:238:43
8:43
+0:19
35K
21.75 mi13:31:343:02:018:226:05
8:08
-0:35
23M
23.00 mi13:42:033:12:308:2210:29
8:22
+0:14
24M
24.00 mi13:50:073:20:348:218:04
8:04
-0:18
40K
24.85 mi13:57:063:27:338:216:59
8:10
+0:06
25.2M
25.20 mi14:00:053:30:328:212:59
8:39
+0:29
Finish
26.22 mi14:07:323:37:598:197:27
7:19
-1:20

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

7:19 /mi

Average Pace

8:19 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

7:27

3% of race

Time at Steady Pace

3:18:50

91% of race

Time at Slower Pace

11:42

5% of race

Average Pace: 8:19 /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 mi10:55:3926:068:2426:06
8:24
#19316
10K
6.21 mi11:21:3852:058:2325:59
8:22
#19130
15K
9.32 mi11:47:381:18:058:2326:00
8:22
#18895
20K
12.43 mi12:13:471:44:148:2326:09
8:25
#18576
Half
13.11 mi12:19:261:49:538:235:39
8:17
#18527
25K
15.53 mi12:39:362:10:038:2220:10
8:19
#18072
30K
18.64 mi13:05:212:35:488:2125:45
8:17
#17184
20M
20.00 mi13:16:462:47:138:2211:25
8:24
#16889
21M
21.00 mi13:25:292:55:568:238:43
8:43
#16569
35K
21.75 mi13:31:343:02:018:226:05
8:08
#16412
23M
23.00 mi13:42:033:12:308:2210:29
8:22
#16140
24M
24.00 mi13:50:073:20:348:218:04
8:04
#15949
40K
24.85 mi13:57:063:27:338:216:59
8:10
#15747
25.2M
25.20 mi14:00:053:30:328:212:59
8:39
#15647
Finish
26.22 mi14:07:323:37:598:197:27
7:19
#15377
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi193167088708818507(Top 65%)6606(Top 54%)6606(Top 121%)
10K6.21 mi3.10 mi19130+1866975+1136975+11318956(Top 67%)6854(Top 56%)6854(Top 125%)
15K9.32 mi3.11 mi18895+2356848+1276848+12718507(Top 65%)6606(Top 54%)6606(Top 121%)
20K12.43 mi3.11 mi18576+3196661+1876661+18717653(Top 62%)6137(Top 50%)6137(Top 112%)
Half13.11 mi0.68 mi18527+496633+286633+2817828(Top 63%)6207(Top 51%)6207(Top 113%)
25K15.53 mi2.42 mi18072+4556403+2306403+23016035(Top 56%)5330(Top 44%)5330(Top 97%)
30K18.64 mi3.11 mi17184+8885926+4775926+47713443(Top 47%)4083(Top 33%)4083(Top 75%)
20M20.00 mi1.36 mi16889+2955774+1525774+15213201(Top 46%)4093(Top 33%)4093(Top 75%)
21M21.00 mi1.00 mi16569+3205619+1555619+15511831(Top 42%)3516(Top 29%)3516(Top 64%)
35K21.75 mi0.75 mi16412+1575549+705549+7013207(Top 46%)4291(Top 35%)4291(Top 78%)
23M23.00 mi1.25 mi16140+2725435+1145435+11412540(Top 44%)4025(Top 33%)4025(Top 74%)
24M24.00 mi1.00 mi15949+1915347+885347+8811735(Top 41%)3688(Top 30%)3688(Top 67%)
40K24.85 mi0.85 mi15747+2025257+905257+9011415(Top 40%)3624(Top 30%)3624(Top 66%)
25.2M25.20 mi0.35 mi15647+1005218+395218+399855(Top 35%)2981(Top 24%)2981(Top 55%)
Finish26.22 mi1.02 mi15377+2705091+1275091+1277898(Top 28%)2039(Top 17%)2039(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18507

Females

6606

F18-39

6606

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18956

Females

6854

F18-39

6854

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18507

Females

6606

F18-39

6606

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17653

Females

6137

F18-39

6137

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17828

Females

6207

F18-39

6207

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

16035

Females

5330

F18-39

5330

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

13443

Females

4083

F18-39

4083

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

13201

Females

4093

F18-39

4093

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11831

Females

3516

F18-39

3516

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13207

Females

4291

F18-39

4291

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12540

Females

4025

F18-39

4025

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

11735

Females

3688

F18-39

3688

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11415

Females

3624

F18-39

3624

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9855

Females

2981

F18-39

2981

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7898

Females

2039

F18-39

2039

Passing Analysis

Category:
Athletes Passed
4311
Passed By
372
Net Change
+3939
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19316
5K → 10K365179+186#19316#19130
10K → 15K32388+235#19130#18895
15K → 20K37354+319#18895#18576
20K → Half6314+49#18576#18527
Half → 25K46712+455#18527#18072
25K → 30K8902+888#18072#17184
30K → 20M2972+295#17184#16889
20M → 21M3244+320#16889#16569
21M → 35K1603+157#16569#16412
35K → 23M2775+272#16412#16140
23M → 24M1976+191#16140#15949
24M → 40K2042+202#15949#15747
40K → 25.2M1011+100#15747#15647
25.2M → Finish2700+270#15647#15377
TOTALS4311372+3939
📊

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