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BOSTON MARATHON 2025

Juan Zheng

Bib: 13695•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
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
8:09/mi
25:18
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
53:19
↑ 79↓ 1380.4%
15K· 9.32 mi
9:38/mi
1:23:16
↑ 67↓ 78
20K· 12.43 mi
9:51/mi
1:53:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:26/mi
2:00:19
↑ 19↓ 370.5%
25K· 15.53 mi
10:54/mi
2:26:45
↑ 66↓ 880.2%
30K· 18.64 mi
10:24/mi
2:59:04
↑ 181↓ 1480.2%
20M
10:35/mi
3:13:27
↑ 64↓ 500.2%
21M
13:46/mi
3:27:13
↑ 106↓ 241.6%
35K· 21.75 mi
9:31/mi
3:34:20
↑ 17↓ 861.7%
23M
9:54/mi
3:46:44
↑ 23↓ 630.6%
24M
9:11/mi
3:55:55
↓ 821.3%
40K· 24.85 mi
9:53/mi
4:04:22
↓ 200.3%
25.2M
10:52/mi
4:08:07
↑ 13↓ 160.2%
Finish· 26.22 mi
9:01/mi
4:17:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:19
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:16:59
Pace10:27 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:3525:188:0925:18
8:09
-
10K
6.21 mi11:22:3653:198:3528:01
9:01
+0:52
15K
9.32 mi11:52:331:23:168:5629:57
9:38
+0:37
20K
12.43 mi12:23:101:53:539:1030:37
9:51
+0:13
Half
13.11 mi12:29:362:00:199:116:26
9:26
-0:25
25K
15.53 mi12:56:022:26:459:2726:26
10:54
+1:28
30K
18.64 mi13:28:212:59:049:3632:19
10:24
-0:30
20M
20.00 mi13:42:443:13:279:4014:23
10:35
+0:11
21M
21.00 mi13:56:303:27:139:5213:46
13:46
+3:11
35K
21.75 mi14:03:373:34:209:517:07
9:31
-4:15
23M
23.00 mi14:16:013:46:449:5112:24
9:54
+0:23
24M
24.00 mi14:25:123:55:559:509:11
9:11
-0:43
40K
24.85 mi14:33:394:04:229:508:27
9:53
+0:42
25.2M
25.20 mi14:37:244:08:079:513:45
10:52
+0:59
Finish
26.22 mi14:46:354:17:189:499:11
9:01
-1:51

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

8:09 /mi

Average Pace

9:49 /mi

Slowest Pace

13:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:41

28% of race

Time at Steady Pace

2:07:17

49% of race

Time at Slower Pace

58:20

23% of race

Average Pace: 9:49 /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 mi10:54:3525:188:0925:18
8:09
#17705
10K
6.21 mi11:22:3653:198:3528:01
9:01
#20305
15K
9.32 mi11:52:331:23:168:5629:57
9:38
#21993
20K
12.43 mi12:23:101:53:539:1030:37
9:51
#22645
Half
13.11 mi12:29:362:00:199:116:26
9:26
#22675
25K
15.53 mi12:56:022:26:459:2726:26
10:54
#23264
30K
18.64 mi13:28:212:59:049:3632:19
10:24
#23106
20M
20.00 mi13:42:443:13:279:4014:23
10:35
#23069
21M
21.00 mi13:56:303:27:139:5213:46
13:46
#23330
35K
21.75 mi14:03:373:34:209:517:07
9:31
#23238
23M
23.00 mi14:16:013:46:449:5112:24
9:54
#23077
24M
24.00 mi14:25:123:55:559:509:11
9:11
#22879
40K
24.85 mi14:33:394:04:229:508:27
9:53
#22770
25.2M
25.20 mi14:37:244:08:079:513:45
10:52
#22728
Finish
26.22 mi14:46:354:17:189:499:11
9:01
#22635
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi177056161616124126(Top 85%)9743(Top 80%)9743(Top 567%)
10K6.21 mi3.10 mi20305-26007652-14917652-149122470(Top 79%)8848(Top 72%)8848(Top 515%)
15K9.32 mi3.11 mi21993-16888601-9498601-94924126(Top 85%)9743(Top 80%)9743(Top 567%)
20K12.43 mi3.11 mi22645-6528929-3288929-32823896(Top 84%)9646(Top 79%)9646(Top 561%)
Half13.11 mi0.68 mi22675-308944-158944-1523367(Top 82%)9353(Top 76%)9353(Top 544%)
25K15.53 mi2.42 mi23264-5899276-3329276-33225066(Top 88%)10327(Top 84%)10327(Top 601%)
30K18.64 mi3.11 mi23106+1589246+309246+3022723(Top 80%)9168(Top 75%)9168(Top 534%)
20M20.00 mi1.36 mi23069+379251-59251-522662(Top 80%)9233(Top 76%)9233(Top 537%)
21M21.00 mi1.00 mi23330-2619406-1559406-15525967(Top 91%)11027(Top 90%)11027(Top 642%)
35K21.75 mi0.75 mi23238+929365+419365+4120406(Top 72%)8197(Top 67%)8197(Top 477%)
23M23.00 mi1.25 mi23077+1619305+609305+6020195(Top 71%)8156(Top 67%)8156(Top 475%)
24M24.00 mi1.00 mi22879+1989223+829223+8218314(Top 64%)7216(Top 59%)7216(Top 420%)
40K24.85 mi0.85 mi22770+1099178+459178+4520099(Top 71%)8217(Top 67%)8217(Top 478%)
25.2M25.20 mi0.35 mi22728+429161+179161+1720305(Top 71%)8325(Top 68%)8325(Top 485%)
Finish26.22 mi1.02 mi22635+939134+279134+2719151(Top 67%)7701(Top 63%)7701(Top 448%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24126

Females

9743

F40-44

9743

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22470

Females

8848

F40-44

8848

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24126

Females

9743

F40-44

9743

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

23896

Females

9646

F40-44

9646

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

23367

Females

9353

F40-44

9353

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

25066

Females

10327

F40-44

10327

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22723

Females

9168

F40-44

9168

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22662

Females

9233

F40-44

9233

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25967

Females

11027

F40-44

11027

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20406

Females

8197

F40-44

8197

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20195

Females

8156

F40-44

8156

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18314

Females

7216

F40-44

7216

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20099

Females

8217

F40-44

8217

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20305

Females

8325

F40-44

8325

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

19151

Females

7701

F40-44

7701

Passing Analysis

Category:
Athletes Passed
1229
Passed By
6159
Net Change
-4930
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17705
5K → 10K72607-2600#17705#20305
10K → 15K171705-1688#20305#21993
15K → 20K56708-652#21993#22645
20K → Half2555-30#22645#22675
Half → 25K24613-589#22675#23264
25K → 30K24890+158#23264#23106
30K → 20M9457+37#23106#23069
20M → 21M20281-261#23069#23330
21M → 35K986+92#23330#23238
35K → 23M17110+161#23238#23077
23M → 24M1991+198#23077#22879
24M → 40K11910+109#22879#22770
40K → 25.2M497+42#22770#22728
25.2M → Finish1029+93#22728#22635
TOTALS12296159-4930
📊

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