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BOSTON MARATHON 2025

Liza Chu

Bib: 24739•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 39%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:34
Rank: #20213
Start → 5K
26:34 | 8:33/mi
10K· 6.21 mi
53:25
Rank: #20390 (-177)
5K → 10K
26:51 | 8:39/mi
15K· 9.32 mi
1:20:29
Rank: #20400 (-10)
10K → 15K
27:04 | 8:43/mi
20K· 12.43 mi
1:47:53
Rank: #20305 (+95)
15K → 20K
27:24 | 8:49/mi
Half· 13.11 mi
1:53:56
Rank: #20359 (-54)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:15:50
Rank: #20331 (+28)
Half → 25K
21:54 | 9:02/mi
30K· 18.64 mi
2:45:48
Rank: #20348 (-17)
25K → 30K
29:58 | 9:39/mi
20M
2:59:08
Rank: #20357 (-9)
30K → 20M
13:20 | 9:49/mi
21M
3:10:00
Rank: #20421 (-64)
20M → 21M
10:52 | 10:52/mi
35K· 21.75 mi
3:18:08
Rank: #20613 (-192)
21M → 35K
8:08 | 10:52/mi
23M
3:34:30
Rank: #21335 (-722)
35K → 23M
16:22 | 13:04/mi
24M
3:45:27
Rank: #21493 (-158)
23M → 24M
10:57 | 10:57/mi
40K· 24.85 mi
3:54:41
Rank: #21539 (-46)
24M → 40K
9:14 | 10:48/mi
25.2M
3:58:45
Rank: #21557 (-18)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:09:03
Rank: #21617 (-60)
25.2M → Finish
10:18 | 10:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:56
Pace8:41 /mi
2nd Half
Distance13.11 mi
Time2:15:07
Pace10:18 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:1426:348:3326:34
8:33
-
10K
6.21 mi11:53:0553:258:3626:51
8:39
+0:06
15K
9.32 mi12:20:091:20:298:3827:04
8:43
+0:04
20K
12.43 mi12:47:331:47:538:4127:24
8:49
+0:06
Half
13.11 mi12:53:361:53:568:416:03
8:52
+0:03
25K
15.53 mi13:15:302:15:508:4521:54
9:02
+0:10
30K
18.64 mi13:45:282:45:488:5429:58
9:39
+0:37
20M
20.00 mi13:58:482:59:088:5713:20
9:49
+0:10
21M
21.00 mi14:09:403:10:009:0310:52
10:52
+1:03
35K
21.75 mi14:17:483:18:089:078:08
10:52
0:00
23M
23.00 mi14:34:103:34:309:2016:22
13:04
+2:12
24M
24.00 mi14:45:073:45:279:2410:57
10:57
-2:07
40K
24.85 mi14:54:213:54:419:279:14
10:48
-0:09
25.2M
25.20 mi14:58:253:58:459:284:04
11:48
+1:00
Finish
26.22 mi15:08:434:09:039:3010:18
10:06
-1:42

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

9:30 /mi

Slowest Pace

13:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:50

55% of race

Time at Steady Pace

53:36

22% of race

Time at Slower Pace

59:37

24% of race

Average Pace: 9:30 /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 mi11:26:1426:348:3326:34
8:33
#20213
10K
6.21 mi11:53:0553:258:3626:51
8:39
#20390
15K
9.32 mi12:20:091:20:298:3827:04
8:43
#20400
20K
12.43 mi12:47:331:47:538:4127:24
8:49
#20305
Half
13.11 mi12:53:361:53:568:416:03
8:52
#20359
25K
15.53 mi13:15:302:15:508:4521:54
9:02
#20331
30K
18.64 mi13:45:282:45:488:5429:58
9:39
#20348
20M
20.00 mi13:58:482:59:088:5713:20
9:49
#20357
21M
21.00 mi14:09:403:10:009:0310:52
10:52
#20421
35K
21.75 mi14:17:483:18:089:078:08
10:52
#20613
23M
23.00 mi14:34:103:34:309:2016:22
13:04
#21335
24M
24.00 mi14:45:073:45:279:2410:57
10:57
#21493
40K
24.85 mi14:54:213:54:419:279:14
10:48
#21539
25.2M
25.20 mi14:58:253:58:459:284:04
11:48
#21557
Finish
26.22 mi15:08:434:09:039:3010:18
10:06
#21617
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi202137627762720568(Top 72%)7753(Top 63%)7753(Top 1242%)
10K6.21 mi3.10 mi20390-1777703-767703-7620577(Top 72%)7790(Top 64%)7790(Top 1248%)
15K9.32 mi3.11 mi20400-107702+17702+120568(Top 72%)7753(Top 63%)7753(Top 1242%)
20K12.43 mi3.11 mi20305+957652+507652+5020049(Top 71%)7508(Top 61%)7508(Top 1203%)
Half13.11 mi0.68 mi20359-547678-267678-2621289(Top 75%)8203(Top 67%)8203(Top 1315%)
25K15.53 mi2.42 mi20331+287676+27676+220069(Top 71%)7574(Top 62%)7574(Top 1214%)
30K18.64 mi3.11 mi20348-177728-527728-5220540(Top 72%)7959(Top 65%)7959(Top 1275%)
20M20.00 mi1.36 mi20357-97754-267754-2620349(Top 72%)7994(Top 65%)7994(Top 1281%)
21M21.00 mi1.00 mi20421-647810-567810-5621054(Top 74%)8475(Top 69%)8475(Top 1358%)
35K21.75 mi0.75 mi20613-1927930-1207930-12023952(Top 84%)10026(Top 82%)10026(Top 1607%)
23M23.00 mi1.25 mi21335-7228342-4128342-41226469(Top 93%)11329(Top 93%)11329(Top 1816%)
24M24.00 mi1.00 mi21493-1588448-1068448-10623904(Top 84%)10066(Top 82%)10066(Top 1613%)
40K24.85 mi0.85 mi21539-468495-478495-4722688(Top 80%)9547(Top 78%)9547(Top 1530%)
25.2M25.20 mi0.35 mi21557-188516-218516-2122785(Top 80%)9553(Top 78%)9553(Top 1531%)
Finish26.22 mi1.02 mi21617-608569-538569-5323245(Top 82%)9787(Top 80%)9787(Top 1568%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20568

Females

7753

F60-64

7753

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20577

Females

7790

F60-64

7790

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20568

Females

7753

F60-64

7753

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20049

Females

7508

F60-64

7508

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21289

Females

8203

F60-64

8203

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

20069

Females

7574

F60-64

7574

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

20540

Females

7959

F60-64

7959

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20349

Females

7994

F60-64

7994

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

21054

Females

8475

F60-64

8475

21M→35K

21.0 - 21.8 mi

Top 84%
×7stories
+17ft-86ft

Overall

23952

Females

10026

F60-64

10026

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

26469

Females

11329

F60-64

11329

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23904

Females

10066

F60-64

10066

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22688

Females

9547

F60-64

9547

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22785

Females

9553

F60-64

9553

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23245

Females

9787

F60-64

9787

Passing Analysis

Category:
Athletes Passed
1310
Passed By
2714
Net Change
-1404
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20213
5K → 10K201378-177#20213#20390
10K → 15K184194-10#20390#20400
15K → 20K220125+95#20400#20305
20K → Half1771-54#20305#20359
Half → 25K172144+28#20359#20331
25K → 30K222239-17#20331#20348
30K → 20M98107-9#20348#20357
20M → 21M64128-64#20357#20421
21M → 35K18210-192#20421#20613
35K → 23M15737-722#20613#21335
23M → 24M19177-158#21335#21493
24M → 40K3682-46#21493#21539
40K → 25.2M1735-18#21539#21557
25.2M → Finish2787-60#21557#21617
TOTALS13102714-1404
📊

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