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BOSTON MARATHON 2025

Denise Zhang

NY

Bib: 16534 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 46%
Masters (Masters Women)
#0 / 6759
Top 33%
Division (F50-54)
#0 / 1303
Top 26%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:03/mi
25:02
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:09/mi
50:22
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:18/mi
1:16:09
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:30/mi
1:42:34
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:12/mi
1:48:10
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:23/mi
2:08:29
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:40/mi
2:35:24
↑ 181↓ 1480.2%
138 ft elev
20M
8:53/mi
2:47:28
↑ 64↓ 500.2%
148 ft elev
21M
9:19/mi
2:56:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:27/mi
3:03:06
↑ 17↓ 861.7%
156 ft elev
23M
8:39/mi
3:13:56
↑ 23↓ 630.6%
116 ft elev
24M
8:37/mi
3:22:33
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:49/mi
3:30:05
↓ 200.3%
20 ft elev
25.2M
9:28/mi
3:33:21
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:14/mi
3:41:44
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:48:108:15 /mi⚡ faster
2nd Half
1:53:348:40 /mi+5.0%
Positive split — 5.0% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:028:033.11 mi25:02
8:03
-
10K
50:228:063.10 mi25:20
8:09
+0:06
15K
1:16:098:103.11 mi25:47
8:18
+0:09
20K
1:42:348:153.11 mi26:25
8:30
+0:12
Half(13.11 mi)
1:48:108:150.68 mi5:36
8:12
-0:18
25K
2:08:298:162.42 mi20:19
8:23
+0:11
30K
2:35:248:203.11 mi26:55
8:40
+0:17
20M
2:47:288:221.36 mi12:04
8:53
+0:13
21M
2:56:478:251.00 mi9:19
9:19
+0:26
35K
3:03:068:250.75 mi6:19
8:27
-0:52
23M
3:13:568:261.25 mi10:50
8:39
+0:12
24M
3:22:338:261.00 mi8:37
8:37
-0:02
40K
3:30:058:270.85 mi7:32
8:49
+0:12
25.2M
3:33:218:280.35 mi3:16
9:28
+0:39
Finish(26.22 mi)
3:41:448:281.02 mi8:23
8:14
-1:14
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:03 /mi

Average Pace

8:28 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:17:05

89% of race

Time at Steady Pace

24:39

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:27 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi17075577957791804863466346
10K3.10 mi17300-2255906-1275906-1271758260516051
15K3.11 mi17562-2626049-1436049-1431804863466346
20K3.11 mi17709-1476161-1126161-1121826264786478
Half(13.11 mi)0.68 mi17674+356136+256136+251735159505950
25K2.42 mi17420+2546011+1256011+1251645055615561
30K3.11 mi17065+3555859+1525859+1521580153445344
20M1.36 mi16972+935823+365823+361612856705670
21M1.00 mi16821+1515768+555768+551525953235323
35K0.75 mi16747+745741+275741+271515853205320
23M1.25 mi16547+2005663+785663+781428749594959
24M1.00 mi16482+655651+125651+121528555355535
40K0.85 mi16415+675641+105641+101527556775677
25.2M0.35 mi16390+255635+65635+61451052995299
Finish(26.22 mi)1.02 mi16307+835608+275608+271447551985198

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18048

Females

6346

F50-54

6346

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17582

Females

6051

F50-54

6051

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18048

Females

6346

F50-54

6346

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18262

Females

6478

F50-54

6478

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17351

Females

5950

F50-54

5950

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16450

Females

5561

F50-54

5561

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15801

Females

5344

F50-54

5344

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16128

Females

5670

F50-54

5670

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

15259

Females

5323

F50-54

5323

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15158

Females

5320

F50-54

5320

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14287

Females

4959

F50-54

4959

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15285

Females

5535

F50-54

5535

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15275

Females

5677

F50-54

5677

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14510

Females

5299

F50-54

5299

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14475

Females

5198

F50-54

5198

Passing Analysis

Category:
Passed
2242
Passed By
1474
Net Change
+768
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17075
5K → 10K202427-225#17075#17300
10K → 15K112374-262#17300#17562
15K → 20K144291-147#17562#17709
20K → Half5621+35#17709#17674
Half → 25K30349+254#17674#17420
25K → 30K40853+355#17420#17065
30K → 20M13946+93#17065#16972
20M → 21M18736+151#16972#16821
21M → 35K9824+74#16821#16747
35K → 23M22020+200#16747#16547
23M → 24M10944+65#16547#16482
24M → 40K10134+67#16482#16415
40K → 25.2M4722+25#16415#16390
25.2M → Finish11633+83#16390#16307
TOTALS22421474+768

Passing Charts

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