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BOSTON MARATHON 2025

Bihua Zhang

Bib: 14688 F CN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 32%
Gender (Female)
#0 / 12228
Top 15%
Masters (Masters Women)
#0 / 6759
Top 5%
Division (F45-49)
#0 / 1813
Top 6%
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
7:54/mi
24:33
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:29/mi
47:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:19/mi
1:10:31
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:22/mi
1:33:24
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:09/mi
1:38:17
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:20/mi
1:56:05
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:38/mi
2:19:48
↑ 181↓ 1480.2%
138 ft elev
20M
7:39/mi
2:30:12
↑ 64↓ 500.2%
148 ft elev
21M
8:08/mi
2:38:20
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:12/mi
2:43:43
↑ 17↓ 861.7%
156 ft elev
23M
7:24/mi
2:52:59
↑ 23↓ 630.6%
116 ft elev
24M
7:24/mi
3:00:23
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:30/mi
3:06:48
↓ 200.3%
20 ft elev
25.2M
8:07/mi
3:09:36
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:04/mi
3:16:48
↑ 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
1:38:177:30 /mi⚖️ balanced
2nd Half
1:38:317:31 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
24:337:543.11 mi24:33
7:54
-
10K
47:477:413.10 mi23:14
7:29
-0:25
15K
1:10:317:343.11 mi22:44
7:19
-0:10
20K
1:33:247:313.11 mi22:53
7:22
+0:03
Half(13.11 mi)
1:38:177:300.68 mi4:53
7:09
-0:13
25K
1:56:057:282.42 mi17:48
7:20
+0:11
30K
2:19:487:303.11 mi23:43
7:38
+0:18
20M
2:30:127:311.36 mi10:24
7:39
+0:01
21M
2:38:207:321.00 mi8:08
8:08
+0:29
35K
2:43:437:320.75 mi5:23
7:12
-0:56
23M
2:52:597:311.25 mi9:16
7:24
+0:12
24M
3:00:237:311.00 mi7:24
7:24
0:00
40K
3:06:487:310.85 mi6:25
7:30
+0:06
25.2M
3:09:367:310.35 mi2:48
8:07
+0:37
Finish(26.22 mi)
3:16:487:311.02 mi7:12
7:04
-1:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:04 /mi

Average Pace

7:31 /mi

Slowest Pace

8:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:41:19

82% of race

Time at Steady Pace

35:29

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /mi

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

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi15699495149511013719451945
10K3.10 mi13835+18643841+11103841+11101190427562756
15K3.11 mi12559+12763133+7083133+7081013719451945
20K3.11 mi11771+7882748+3852748+385961217931793
Half(13.11 mi)0.68 mi11613+1582668+802668+80881514271427
25K2.42 mi11110+5032443+2252443+225869515011501
30K3.11 mi10585+5252247+1962247+196870716961696
20M1.36 mi10336+2492166+812166+81807715711571
21M1.00 mi10162+1742118+482118+48818718021802
35K0.75 mi9976+1862055+632055+63663511591159
23M1.25 mi9684+2921942+1131942+113609510671067
24M1.00 mi9508+1761903+391903+39708014941494
40K0.85 mi9379+1291876+271876+27685814981498
25.2M0.35 mi9295+841861+151861+15667615041504
Finish(26.22 mi)1.02 mi9129+1661821+401821+40619013231323

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10137

Females

1945

F45-49

1945

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11904

Females

2756

F45-49

2756

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10137

Females

1945

F45-49

1945

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9612

Females

1793

F45-49

1793

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8815

Females

1427

F45-49

1427

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8695

Females

1501

F45-49

1501

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8707

Females

1696

F45-49

1696

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

8077

Females

1571

F45-49

1571

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

8187

Females

1802

F45-49

1802

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6635

Females

1159

F45-49

1159

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

6095

Females

1067

F45-49

1067

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

7080

Females

1494

F45-49

1494

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6858

Females

1498

F45-49

1498

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6676

Females

1504

F45-49

1504

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6190

Females

1323

F45-49

1323

Passing Analysis

Category:
Passed
6704*
Passed By
134
Net Change
+6570
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15699
5K → 10K187713+1864#15699#13835
10K → 15K12782+1276#13835#12559
15K → 20K7913+788#12559#11771
20K → Half1591+158#11771#11613
Half → 25K5030+503#11613#11110
25K → 30K55227+525#11110#10585
30K → 20M26718+249#10585#10336
20M → 21M19420+174#10336#10162
21M → 35K186*0+186#10162#9976
35K → 23M2964+292#9976#9684
23M → 24M19418+176#9684#9508
24M → 40K1389+129#9508#9379
40K → 25.2M884+84#9379#9295
25.2M → Finish18115+166#9295#9129
TOTALS6704*134+6570

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

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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