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BOSTON MARATHON 2025

Xiaohong Zheng

Bib: 24886•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:34/mi
26:38
↑ 97↓ 3451.5%
10K· 6.21 mi
9:01/mi
54:40
↑ 79↓ 1380.4%
15K· 9.32 mi
9:20/mi
1:23:41
↑ 67↓ 78
20K· 12.43 mi
10:10/mi
1:55:16
↑ 106↓ 860.1%
Half· 13.11 mi
9:48/mi
2:01:57
↑ 19↓ 370.5%
25K· 15.53 mi
10:20/mi
2:27:01
↑ 66↓ 880.2%
30K· 18.64 mi
11:14/mi
3:01:54
↑ 181↓ 1480.2%
20M
11:22/mi
3:17:21
↑ 64↓ 500.2%
21M
12:06/mi
3:29:27
↑ 106↓ 241.6%
35K· 21.75 mi
11:20/mi
3:37:56
↑ 17↓ 861.7%
23M
11:13/mi
3:51:59
↑ 23↓ 630.6%
24M
10:31/mi
4:02:30
↓ 821.3%
40K· 24.85 mi
10:50/mi
4:11:46
↓ 200.3%
25.2M
11:53/mi
4:15:52
↑ 13↓ 160.2%
Finish· 26.22 mi
10:00/mi
4:26:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:57
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:24:06
Pace11:00 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0126:388:3426:38
8:34
-
10K
6.21 mi11:55:0354:408:4828:02
9:01
+0:27
15K
9.32 mi12:24:041:23:418:5929:01
9:20
+0:19
20K
12.43 mi12:55:391:55:169:1731:35
10:10
+0:50
Half
13.11 mi13:02:202:01:579:186:41
9:48
-0:22
25K
15.53 mi13:27:242:27:019:2825:04
10:20
+0:32
30K
18.64 mi14:02:173:01:549:4534:53
11:14
+0:54
20M
20.00 mi14:17:443:17:219:5215:27
11:22
+0:08
21M
21.00 mi14:29:503:29:279:5812:06
12:06
+0:44
35K
21.75 mi14:38:193:37:5610:018:29
11:20
-0:46
23M
23.00 mi14:52:223:51:5910:0514:03
11:13
-0:07
24M
24.00 mi15:02:534:02:3010:0610:31
10:31
-0:42
40K
24.85 mi15:12:094:11:4610:089:16
10:50
+0:19
25.2M
25.20 mi15:16:154:15:5210:094:06
11:53
+1:03
Finish
26.22 mi15:26:264:26:0310:0910:11
10:00
-1:53

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

8:34 /mi

Average Pace

10:09 /mi

Slowest Pace

12:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:33

38% of race

Time at Steady Pace

1:16:26

29% of race

Time at Slower Pace

1:29:04

33% of race

Average Pace: 10:09 /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 mi11:27:0126:388:3426:38
8:34
#20330
10K
6.21 mi11:55:0354:408:4828:02
9:01
#21442
15K
9.32 mi12:24:041:23:418:5929:01
9:20
#22192
20K
12.43 mi12:55:391:55:169:1731:35
10:10
#23062
Half
13.11 mi13:02:202:01:579:186:41
9:48
#23136
25K
15.53 mi13:27:242:27:019:2825:04
10:20
#23305
30K
18.64 mi14:02:173:01:549:4534:53
11:14
#23556
20M
20.00 mi14:17:443:17:219:5215:27
11:22
#23631
21M
21.00 mi14:29:503:29:279:5812:06
12:06
#23648
35K
21.75 mi14:38:193:37:5610:018:29
11:20
#23719
23M
23.00 mi14:52:223:51:5910:0514:03
11:13
#23711
24M
24.00 mi15:02:534:02:3010:0610:31
10:31
#23680
40K
24.85 mi15:12:094:11:4610:089:16
10:50
#23661
25.2M
25.20 mi15:16:154:15:5210:094:06
11:53
#23650
Finish
26.22 mi15:26:264:26:0310:0910:11
10:00
#23603
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi203307701770123322(Top 82%)9275(Top 76%)9275(Top 933%)
10K6.21 mi3.10 mi21442-11128304-6038304-60322491(Top 79%)8860(Top 72%)8860(Top 891%)
15K9.32 mi3.11 mi22192-7508696-3928696-39223322(Top 82%)9275(Top 76%)9275(Top 933%)
20K12.43 mi3.11 mi23062-8709161-4659161-46524569(Top 86%)10028(Top 82%)10028(Top 1009%)
Half13.11 mi0.68 mi23136-749202-419202-4124381(Top 86%)9925(Top 81%)9925(Top 998%)
25K15.53 mi2.42 mi23305-1699300-989300-9824049(Top 85%)9767(Top 80%)9767(Top 983%)
30K18.64 mi3.11 mi23556-2519486-1869486-18624430(Top 86%)10092(Top 83%)10092(Top 1015%)
20M20.00 mi1.36 mi23631-759560-749560-7424316(Top 86%)10123(Top 83%)10123(Top 1018%)
21M21.00 mi1.00 mi23648-179582-229582-2223776(Top 84%)9903(Top 81%)9903(Top 996%)
35K21.75 mi0.75 mi23719-719622-409622-4024841(Top 87%)10501(Top 86%)10501(Top 1056%)
23M23.00 mi1.25 mi23711+89642-209642-2023722(Top 84%)9968(Top 82%)9968(Top 1003%)
24M24.00 mi1.00 mi23680+319640+29640+222879(Top 81%)9582(Top 78%)9582(Top 964%)
40K24.85 mi0.85 mi23661+199649-99649-922785(Top 80%)9596(Top 78%)9596(Top 965%)
25.2M25.20 mi0.35 mi23650+119648+19648+123026(Top 81%)9669(Top 79%)9669(Top 973%)
Finish26.22 mi1.02 mi23603+479643+59643+522936(Top 81%)9637(Top 79%)9637(Top 970%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

23322

Females

9275

F55-59

9275

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22491

Females

8860

F55-59

8860

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

23322

Females

9275

F55-59

9275

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24569

Females

10028

F55-59

10028

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24381

Females

9925

F55-59

9925

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24049

Females

9767

F55-59

9767

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24430

Females

10092

F55-59

10092

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24316

Females

10123

F55-59

10123

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23776

Females

9903

F55-59

9903

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

24841

Females

10501

F55-59

10501

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23722

Females

9968

F55-59

9968

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22879

Females

9582

F55-59

9582

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22785

Females

9596

F55-59

9596

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23026

Females

9669

F55-59

9669

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22936

Females

9637

F55-59

9637

Passing Analysis

Category:
Athletes Passed
709
Passed By
3982
Net Change
-3273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20330
5K → 10K381150-1112#20330#21442
10K → 15K50800-750#21442#22192
15K → 20K35905-870#22192#23062
20K → Half1488-74#23062#23136
Half → 25K77246-169#23136#23305
25K → 30K81332-251#23305#23556
30K → 20M49124-75#23556#23631
20M → 21M6784-17#23631#23648
21M → 35K2495-71#23648#23719
35K → 23M7163+8#23719#23711
23M → 24M5928+31#23711#23680
24M → 40K5233+19#23680#23661
40K → 25.2M2110+11#23661#23650
25.2M → Finish7124+47#23650#23603
TOTALS7093982-3273
📊

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