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BOSTON MARATHON 2025

Xin Zhang

Bib: 25257•F

CT

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
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:24/mi
29:11
↑ 97↓ 3451.5%
10K· 6.21 mi
9:38/mi
59:08
↑ 79↓ 1380.4%
15K· 9.32 mi
9:44/mi
1:29:22
↑ 67↓ 78
20K· 12.43 mi
10:22/mi
2:01:36
↑ 106↓ 860.1%
Half· 13.11 mi
10:04/mi
2:08:28
↑ 19↓ 370.5%
25K· 15.53 mi
10:26/mi
2:33:46
↑ 66↓ 880.2%
30K· 18.64 mi
11:08/mi
3:08:22
↑ 181↓ 1480.2%
20M
10:57/mi
3:23:15
↑ 64↓ 500.2%
21M
11:36/mi
3:34:51
↑ 106↓ 241.6%
35K· 21.75 mi
9:53/mi
3:42:15
↑ 17↓ 861.7%
23M
9:29/mi
3:54:07
↑ 23↓ 630.6%
24M
9:07/mi
4:03:14
↓ 821.3%
40K· 24.85 mi
9:20/mi
4:11:13
↓ 200.3%
25.2M
10:32/mi
4:14:51
↑ 13↓ 160.2%
Finish· 26.22 mi
9:04/mi
4:24:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:28
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:15:37
Pace10:21 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:2429:119:2429:11
9:24
-
10K
6.21 mi12:00:2159:089:3129:57
9:38
+0:14
15K
9.32 mi12:30:351:29:229:3530:14
9:44
+0:06
20K
12.43 mi13:02:492:01:369:4732:14
10:22
+0:38
Half
13.11 mi13:09:412:08:289:486:52
10:04
-0:18
25K
15.53 mi13:34:592:33:469:5425:18
10:26
+0:22
30K
18.64 mi14:09:353:08:2210:0634:36
11:08
+0:42
20M
20.00 mi14:24:283:23:1510:1014:53
10:57
-0:11
21M
21.00 mi14:36:043:34:5110:1411:36
11:36
+0:39
35K
21.75 mi14:43:283:42:1510:137:24
9:53
-1:43
23M
23.00 mi14:55:203:54:0710:1111:52
9:29
-0:24
24M
24.00 mi15:04:274:03:1410:089:07
9:07
-0:22
40K
24.85 mi15:12:264:11:1310:067:59
9:20
+0:13
25.2M
25.20 mi15:16:044:14:5110:073:38
10:32
+1:12
Finish
26.22 mi15:25:184:24:0510:059:14
9:04
-1:28

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

9:04 /mi

Average Pace

10:05 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:23

26% of race

Time at Steady Pace

1:14:27

28% of race

Time at Slower Pace

2:02:15

46% of race

Average Pace: 10:04 /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 mi11:30:2429:119:2429:11
9:24
#23899
10K
6.21 mi12:00:2159:089:3129:57
9:38
#24234
15K
9.32 mi12:30:351:29:229:3530:14
9:44
#24283
20K
12.43 mi13:02:492:01:369:4732:14
10:22
#24503
Half
13.11 mi13:09:412:08:289:486:52
10:04
#24524
25K
15.53 mi13:34:592:33:469:5425:18
10:26
#24493
30K
18.64 mi14:09:353:08:2210:0634:36
11:08
#24460
20M
20.00 mi14:24:283:23:1510:1014:53
10:57
#24397
21M
21.00 mi14:36:043:34:5110:1411:36
11:36
#24308
35K
21.75 mi14:43:283:42:1510:137:24
9:53
#24220
23M
23.00 mi14:55:203:54:0710:1111:52
9:29
#23942
24M
24.00 mi15:04:274:03:1410:089:07
9:07
#23757
40K
24.85 mi15:12:264:11:1310:067:59
9:20
#23596
25.2M
25.20 mi15:16:044:14:5110:073:38
10:32
#23531
Finish
26.22 mi15:25:184:24:0510:059:14
9:04
#23400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi238999645964524366(Top 86%)9880(Top 81%)9880(Top 1583%)
10K6.21 mi3.10 mi24234-3359812-1679812-16724466(Top 86%)9946(Top 81%)9946(Top 1594%)
15K9.32 mi3.11 mi24283-499833-219833-2124366(Top 86%)9880(Top 81%)9880(Top 1583%)
20K12.43 mi3.11 mi24503-2209977-1449977-14424974(Top 88%)10242(Top 84%)10242(Top 1641%)
Half13.11 mi0.68 mi24524-219988-119988-1124969(Top 88%)10239(Top 84%)10239(Top 1641%)
25K15.53 mi2.42 mi24493+319977+119977+1124252(Top 85%)9883(Top 81%)9883(Top 1584%)
30K18.64 mi3.11 mi24460+339980-39980-324273(Top 85%)10009(Top 82%)10009(Top 1604%)
20M20.00 mi1.36 mi24397+639957+239957+2323505(Top 83%)9685(Top 79%)9685(Top 1552%)
21M21.00 mi1.00 mi24308+899935+229935+2222826(Top 80%)9410(Top 77%)9410(Top 1508%)
35K21.75 mi0.75 mi24220+889898+379898+3721621(Top 76%)8844(Top 72%)8844(Top 1417%)
23M23.00 mi1.25 mi23942+2789772+1269772+12618624(Top 66%)7317(Top 60%)7317(Top 1173%)
24M24.00 mi1.00 mi23757+1859680+929680+9217999(Top 63%)7046(Top 58%)7046(Top 1129%)
40K24.85 mi0.85 mi23596+1619613+679613+6718059(Top 64%)7163(Top 59%)7163(Top 1148%)
25.2M25.20 mi0.35 mi23531+659588+259588+2519225(Top 68%)7780(Top 64%)7780(Top 1247%)
Finish26.22 mi1.02 mi23400+1319534+549534+5419380(Top 68%)7812(Top 64%)7812(Top 1252%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24366

Females

9880

F60-64

9880

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24466

Females

9946

F60-64

9946

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24366

Females

9880

F60-64

9880

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

24974

Females

10242

F60-64

10242

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

24969

Females

10239

F60-64

10239

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24252

Females

9883

F60-64

9883

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24273

Females

10009

F60-64

10009

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23505

Females

9685

F60-64

9685

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22826

Females

9410

F60-64

9410

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21621

Females

8844

F60-64

8844

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18624

Females

7317

F60-64

7317

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

17999

Females

7046

F60-64

7046

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18059

Females

7163

F60-64

7163

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19225

Females

7780

F60-64

7780

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19380

Females

7812

F60-64

7812

Passing Analysis

Category:
Athletes Passed
1728
Passed By
1229
Net Change
+499
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23899
5K → 10K114449-335#23899#24234
10K → 15K128177-49#24234#24283
15K → 20K73293-220#24283#24503
20K → Half2041-21#24503#24524
Half → 25K12089+31#24524#24493
25K → 30K147114+33#24493#24460
30K → 20M9532+63#24460#24397
20M → 21M11324+89#24397#24308
21M → 35K913+88#24308#24220
35K → 23M2780+278#24220#23942
23M → 24M1850+185#23942#23757
24M → 40K1621+161#23757#23596
40K → 25.2M694+65#23596#23531
25.2M → Finish1332+131#23531#23400
TOTALS17281229+499
📊

Passing Visuals

Category:
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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