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BOSTON MARATHON 2025

Lucy Zhou

Bib: 24523•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

Start
0:00:00
Race begins
5K· 3.11 mi
31:42
Rank: #26058
Start → 5K
31:42 | 10:12/mi
10K· 6.21 mi
1:03:35
Rank: #25970 (+88)
5K → 10K
31:53 | 10:16/mi
15K· 9.32 mi
1:36:14
Rank: #25950 (+20)
10K → 15K
32:39 | 10:31/mi
20K· 12.43 mi
2:10:51
Rank: #26026 (-76)
15K → 20K
34:37 | 11:09/mi
Half· 13.11 mi
2:18:12
Rank: #26028 (-2)
20K → Half
7:21 | 10:46/mi
25K· 15.53 mi
2:44:51
Rank: #25892 (+136)
Half → 25K
26:39 | 10:59/mi
30K· 18.64 mi
3:20:48
Rank: #25717 (+175)
25K → 30K
35:57 | 11:34/mi
20M
3:38:20
Rank: #25770 (-53)
30K → 20M
17:32 | 12:54/mi
21M
3:51:00
Rank: #25728 (+42)
20M → 21M
12:40 | 12:40/mi
35K· 21.75 mi
3:58:50
Rank: #25646 (+82)
21M → 35K
7:50 | 10:28/mi
23M
4:11:44
Rank: #25467 (+179)
35K → 23M
12:54 | 10:18/mi
24M
4:21:42
Rank: #25334 (+133)
23M → 24M
9:58 | 9:58/mi
40K· 24.85 mi
4:30:17
Rank: #25224 (+110)
24M → 40K
8:35 | 10:02/mi
25.2M
4:34:10
Rank: #25184 (+40)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
4:44:36
Rank: #25147 (+37)
25.2M → Finish
10:26 | 10:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:12
Pace10:33 /mi
2nd Half
Distance13.11 mi
Time2:26:24
Pace11:10 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:1431:4210:1231:42
10:12
-
10K
6.21 mi12:05:071:03:3510:1431:53
10:16
+0:04
15K
9.32 mi12:37:461:36:1410:1932:39
10:31
+0:15
20K
12.43 mi13:12:232:10:5110:3234:37
11:09
+0:38
Half
13.11 mi13:19:442:18:1210:337:21
10:46
-0:23
25K
15.53 mi13:46:232:44:5110:3726:39
10:59
+0:13
30K
18.64 mi14:22:203:20:4810:4635:57
11:34
+0:35
20M
20.00 mi14:39:523:38:2010:5517:32
12:54
+1:20
21M
21.00 mi14:52:323:51:0011:0012:40
12:40
-0:14
35K
21.75 mi15:00:223:58:5010:597:50
10:28
-2:12
23M
23.00 mi15:13:164:11:4410:5712:54
10:18
-0:10
24M
24.00 mi15:23:144:21:4210:549:58
9:58
-0:20
40K
24.85 mi15:31:494:30:1710:528:35
10:02
+0:04
25.2M
25.20 mi15:35:424:34:1010:533:53
11:16
+1:14
Finish
26.22 mi15:46:084:44:3610:5210:26
10:14
-1:02

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

9:58 /mi

Average Pace

10:52 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:33

7% of race

Time at Steady Pace

2:14:45

47% of race

Time at Slower Pace

2:11:18

46% of race

Average Pace: 10:51 /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 mi11:33:1431:4210:1231:42
10:12
#26058
10K
6.21 mi12:05:071:03:3510:1431:53
10:16
#25970
15K
9.32 mi12:37:461:36:1410:1932:39
10:31
#25950
20K
12.43 mi13:12:232:10:5110:3234:37
11:09
#26026
Half
13.11 mi13:19:442:18:1210:337:21
10:46
#26028
25K
15.53 mi13:46:232:44:5110:3726:39
10:59
#25892
30K
18.64 mi14:22:203:20:4810:4635:57
11:34
#25717
20M
20.00 mi14:39:523:38:2010:5517:32
12:54
#25770
21M
21.00 mi14:52:323:51:0011:0012:40
12:40
#25728
35K
21.75 mi15:00:223:58:5010:597:50
10:28
#25646
23M
23.00 mi15:13:164:11:4410:5712:54
10:18
#25467
24M
24.00 mi15:23:144:21:4210:549:58
9:58
#25334
40K
24.85 mi15:31:494:30:1710:528:35
10:02
#25224
25.2M
25.20 mi15:35:424:34:1010:533:53
11:16
#25184
Finish
26.22 mi15:46:084:44:3610:5210:26
10:14
#25147
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi26058107921079225952(Top 91%)10763(Top 88%)10763(Top 1083%)
10K6.21 mi3.10 mi25970+8810757+3510757+3525847(Top 91%)10711(Top 88%)10711(Top 1078%)
15K9.32 mi3.11 mi25950+2010748+910748+925952(Top 91%)10763(Top 88%)10763(Top 1083%)
20K12.43 mi3.11 mi26026-7610803-5510803-5526207(Top 92%)10920(Top 89%)10920(Top 1099%)
Half13.11 mi0.68 mi26028-210805-210805-226177(Top 92%)10919(Top 89%)10919(Top 1098%)
25K15.53 mi2.42 mi25892+13610737+6810737+6825194(Top 89%)10403(Top 85%)10403(Top 1047%)
30K18.64 mi3.11 mi25717+17510678+5910678+5924949(Top 88%)10379(Top 85%)10379(Top 1044%)
20M20.00 mi1.36 mi25770-5310718-4010718-4026345(Top 93%)11192(Top 92%)11192(Top 1126%)
21M21.00 mi1.00 mi25728+4210706+1210706+1224604(Top 87%)10353(Top 85%)10353(Top 1042%)
35K21.75 mi0.75 mi25646+8210669+3710669+3723072(Top 81%)9594(Top 78%)9594(Top 965%)
23M23.00 mi1.25 mi25467+17910592+7710592+7721406(Top 75%)8759(Top 72%)8759(Top 881%)
24M24.00 mi1.00 mi25334+13310524+6810524+6821236(Top 75%)8729(Top 71%)8729(Top 878%)
40K24.85 mi0.85 mi25224+11010471+5310471+5320538(Top 72%)8434(Top 69%)8434(Top 848%)
25.2M25.20 mi0.35 mi25184+4010452+1910452+1921339(Top 75%)8848(Top 72%)8848(Top 890%)
Finish26.22 mi1.02 mi25147+3710440+1210440+1223606(Top 83%)9980(Top 82%)9980(Top 1004%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25952

Females

10763

F55-59

10763

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25847

Females

10711

F55-59

10711

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25952

Females

10763

F55-59

10763

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26207

Females

10920

F55-59

10920

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

26177

Females

10919

F55-59

10919

Half→25K

13.1 - 15.5 mi

Top 89%
×4stories
+66ft-88ft

Overall

25194

Females

10403

F55-59

10403

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

24949

Females

10379

F55-59

10379

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26345

Females

11192

F55-59

11192

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24604

Females

10353

F55-59

10353

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23072

Females

9594

F55-59

9594

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21406

Females

8759

F55-59

8759

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21236

Females

8729

F55-59

8729

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20538

Females

8434

F55-59

8434

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21339

Females

8848

F55-59

8848

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23606

Females

9980

F55-59

9980

Passing Analysis

Category:
Athletes Passed
1554
Passed By
643
Net Change
+911
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26058
5K → 10K222134+88#26058#25970
10K → 15K137117+20#25970#25950
15K → 20K89165-76#25950#26026
20K → Half2527-2#26026#26028
Half → 25K17034+136#26028#25892
25K → 30K20631+175#25892#25717
30K → 20M3891-53#25717#25770
20M → 21M6927+42#25770#25728
21M → 35K853+82#25728#25646
35K → 23M1834+179#25646#25467
23M → 24M1363+133#25467#25334
24M → 40K1100+110#25334#25224
40K → 25.2M433+40#25224#25184
25.2M → Finish414+37#25184#25147
TOTALS1554643+911
📊

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