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BOSTON MARATHON 2025

Zhaoxia Bing

Bib: 31142•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
9:13/mi
28:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:24/mi
57:50
↑ 79↓ 1380.4%
15K· 9.32 mi
9:46/mi
1:28:12
↑ 67↓ 78
20K· 12.43 mi
10:29/mi
2:00:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:57/mi
2:07:32
↑ 19↓ 370.5%
25K· 15.53 mi
11:06/mi
2:34:27
↑ 66↓ 880.2%
30K· 18.64 mi
12:01/mi
3:11:48
↑ 181↓ 1480.2%
20M
12:08/mi
3:28:17
↑ 64↓ 500.2%
21M
13:04/mi
3:41:21
↑ 106↓ 241.6%
35K· 21.75 mi
11:07/mi
3:49:40
↑ 17↓ 861.7%
23M
11:35/mi
4:04:10
↑ 23↓ 630.6%
24M
11:15/mi
4:15:25
↓ 821.3%
40K· 24.85 mi
11:28/mi
4:25:13
↓ 200.3%
25.2M
12:34/mi
4:29:33
↑ 13↓ 160.2%
Finish· 26.22 mi
11:15/mi
4:41:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:32
Pace9:44 /mi
2nd Half
Distance13.11 mi
Time2:33:29
Pace11:42 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2428:379:1328:37
9:13
-
10K
6.21 mi12:23:3757:509:1829:13
9:24
+0:11
15K
9.32 mi12:53:591:28:129:2830:22
9:46
+0:22
20K
12.43 mi13:26:322:00:459:4332:33
10:29
+0:43
Half
13.11 mi13:33:192:07:329:446:47
9:57
-0:32
25K
15.53 mi14:00:142:34:279:5726:55
11:06
+1:09
30K
18.64 mi14:37:353:11:4810:1737:21
12:01
+0:55
20M
20.00 mi14:54:043:28:1710:2516:29
12:08
+0:07
21M
21.00 mi15:07:083:41:2110:3213:04
13:04
+0:56
35K
21.75 mi15:15:273:49:4010:348:19
11:07
-1:57
23M
23.00 mi15:29:574:04:1010:3714:30
11:35
+0:28
24M
24.00 mi15:41:124:15:2510:3911:15
11:15
-0:20
40K
24.85 mi15:51:004:25:1310:409:48
11:28
+0:13
25.2M
25.20 mi15:55:204:29:3310:424:20
12:34
+1:06
Finish
26.22 mi16:06:484:41:0110:4411:28
11:15
-1:19

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

9:13 /mi

Average Pace

10:44 /mi

Slowest Pace

13:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:32

45% of race

Time at Steady Pace

1:22:15

29% of race

Time at Slower Pace

1:11:14

25% of race

Average Pace: 10:43 /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 mi11:54:2428:379:1328:37
9:13
#23261
10K
6.21 mi12:23:3757:509:1829:13
9:24
#23592
15K
9.32 mi12:53:591:28:129:2830:22
9:46
#23937
20K
12.43 mi13:26:322:00:459:4332:33
10:29
#24342
Half
13.11 mi13:33:192:07:329:446:47
9:57
#24343
25K
15.53 mi14:00:142:34:279:5726:55
11:06
#24596
30K
18.64 mi14:37:353:11:4810:1737:21
12:01
#24844
20M
20.00 mi14:54:043:28:1710:2516:29
12:08
#24907
21M
21.00 mi15:07:083:41:2110:3213:04
13:04
#24949
35K
21.75 mi15:15:273:49:4010:348:19
11:07
#24944
23M
23.00 mi15:29:574:04:1010:3714:30
11:35
#24914
24M
24.00 mi15:41:124:15:2510:3911:15
11:15
#24904
40K
24.85 mi15:51:004:25:1310:409:48
11:28
#24880
25.2M
25.20 mi15:55:204:29:3310:424:20
12:34
#24882
Finish
26.22 mi16:06:484:41:0110:4411:28
11:15
#24918
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi232619312931224487(Top 86%)9949(Top 81%)9949(Top 764%)
10K6.21 mi3.10 mi23592-3319482-1709482-17023831(Top 84%)9585(Top 78%)9585(Top 736%)
15K9.32 mi3.11 mi23937-3459641-1599641-15924487(Top 86%)9949(Top 81%)9949(Top 764%)
20K12.43 mi3.11 mi24342-4059886-2459886-24525145(Top 89%)10343(Top 85%)10343(Top 794%)
Half13.11 mi0.68 mi24343-19894-89894-824684(Top 87%)10106(Top 83%)10106(Top 776%)
25K15.53 mi2.42 mi24596-25310029-13510029-13525343(Top 89%)10483(Top 86%)10483(Top 805%)
30K18.64 mi3.11 mi24844-24810192-16310192-16325623(Top 90%)10742(Top 88%)10742(Top 824%)
20M20.00 mi1.36 mi24907-6310246-5410246-5425434(Top 90%)10720(Top 88%)10720(Top 823%)
21M21.00 mi1.00 mi24949-4210277-3110277-3125111(Top 88%)10619(Top 87%)10619(Top 815%)
35K21.75 mi0.75 mi24944+510279-210279-224432(Top 86%)10297(Top 84%)10297(Top 790%)
23M23.00 mi1.25 mi24914+3010282-310282-324380(Top 86%)10289(Top 84%)10289(Top 790%)
24M24.00 mi1.00 mi24904+1010291-910291-924462(Top 86%)10358(Top 85%)10358(Top 795%)
40K24.85 mi0.85 mi24880+2410292-110292-124046(Top 85%)10190(Top 83%)10190(Top 782%)
25.2M25.20 mi0.35 mi24882-210296-410296-424273(Top 85%)10301(Top 84%)10301(Top 791%)
Finish26.22 mi1.02 mi24918-3610321-2510321-2525781(Top 91%)11032(Top 90%)11032(Top 847%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21story building
+97ft-345ft

Overall

24487

Females

9949

F50-54

9949

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23831

Females

9585

F50-54

9585

10K→15K

6.2 - 9.3 mi

Top 86%
×3story building
+67ft-78ft

Overall

24487

Females

9949

F50-54

9949

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25145

Females

10343

F50-54

10343

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24684

Females

10106

F50-54

10106

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25343

Females

10483

F50-54

10483

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25623

Females

10742

F50-54

10742

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25434

Females

10720

F50-54

10720

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

25111

Females

10619

F50-54

10619

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

24432

Females

10297

F50-54

10297

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

24380

Females

10289

F50-54

10289

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24462

Females

10358

F50-54

10358

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24046

Females

10190

F50-54

10190

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24273

Females

10301

F50-54

10301

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

25781

Females

11032

F50-54

11032

Passing Analysis

Category:
Athletes Passed
653
Passed By
2310
Net Change
-1657
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23261
5K → 10K117448-331#23261#23592
10K → 15K72417-345#23592#23937
15K → 20K43448-405#23937#24342
20K → Half2223-1#24342#24343
Half → 25K41294-253#24343#24596
25K → 30K67315-248#24596#24844
30K → 20M38101-63#24844#24907
20M → 21M3577-42#24907#24949
21M → 35K3429+5#24949#24944
35K → 23M6131+30#24944#24914
23M → 24M3626+10#24914#24904
24M → 40K5430+24#24904#24880
40K → 25.2M1315-2#24880#24882
25.2M → Finish2056-36#24882#24918
TOTALS6532310-1657
📊

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