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BOSTON MARATHON 2025

Hui Zhang

NJ

Bib: 18108 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 21%
Masters (Masters Women)
#0 / 6759
Top 8%
Division (F50-54)
#0 / 1303
Top 4%
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
7:44/mi
24:01
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:28/mi
47:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:18/mi
1:09:56
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:25/mi
1:33:00
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:26/mi
1:38:04
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:33/mi
1:56:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:52/mi
2:20:47
↑ 181↓ 1480.2%
138 ft elev
20M
8:01/mi
2:31:40
↑ 64↓ 500.2%
148 ft elev
21M
8:35/mi
2:40:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:44/mi
2:46:02
↑ 17↓ 861.7%
156 ft elev
23M
8:12/mi
2:56:18
↑ 23↓ 630.6%
116 ft elev
24M
7:53/mi
3:04:11
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:49/mi
3:10:52
↓ 200.3%
20 ft elev
25.2M
8:51/mi
3:13:55
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:41/mi
3:21:45
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:04
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:43:41
Pace7:55 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5424:017:4424:01
7:44
-
10K
6.21 mi11:39:0747:147:3623:13
7:28
-0:16
15K
9.32 mi12:01:491:09:567:3022:42
7:18
-0:10
20K
12.43 mi12:24:531:33:007:2923:04
7:25
+0:07
Half
13.11 mi12:29:571:38:047:295:04
7:26
+0:01
25K
15.53 mi12:48:151:56:227:2918:18
7:33
+0:07
30K
18.64 mi13:12:402:20:477:3324:25
7:52
+0:19
20M
20.00 mi13:23:332:31:407:3510:53
8:01
+0:09
21M
21.00 mi13:32:082:40:157:388:35
8:35
+0:34
35K
21.75 mi13:37:552:46:027:385:47
7:44
-0:51
23M
23.00 mi13:48:112:56:187:4010:16
8:12
+0:28
24M
24.00 mi13:56:043:04:117:407:53
7:53
-0:19
40K
24.85 mi14:02:453:10:527:416:41
7:49
-0:04
25.2M
25.20 mi14:05:483:13:557:423:03
8:51
+1:02
Finish
26.22 mi14:13:383:21:457:427:50
7:41
-1:10

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

7:18 /mi

Average Pace

7:42 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:03

37% of race

Time at Steady Pace

1:34:55

47% of race

Time at Slower Pace

32:47

16% of race

Average Pace: 7:42 /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 mi11:15:5424:017:4424:01
7:44
#14217
10K
6.21 mi11:39:0747:147:3623:13
7:28
#13059
15K
9.32 mi12:01:491:09:567:3022:42
7:18
#12017
20K
12.43 mi12:24:531:33:007:2923:04
7:25
#11502
Half
13.11 mi12:29:571:38:047:295:04
7:26
#11477
25K
15.53 mi12:48:151:56:227:2918:18
7:33
#11257
30K
18.64 mi13:12:402:20:477:3324:25
7:52
#11053
20M
20.00 mi13:23:332:31:407:3510:53
8:01
#10954
21M
21.00 mi13:32:082:40:157:388:35
8:35
#10921
35K
21.75 mi13:37:552:46:027:385:47
7:44
#10872
23M
23.00 mi13:48:112:56:187:4010:16
8:12
#10864
24M
24.00 mi13:56:043:04:117:407:53
7:53
#10810
40K
24.85 mi14:02:453:10:527:416:41
7:49
#10711
25.2M
25.20 mi14:05:483:13:557:423:03
8:51
#10690
Finish
26.22 mi14:13:383:21:457:427:50
7:41
#10650
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi142174041404110059(Top 35%)1916(Top 16%)1916(Top 147%)
10K6.21 mi3.10 mi13059+11583375+6663375+66611855(Top 42%)2738(Top 22%)2738(Top 210%)
15K9.32 mi3.11 mi12017+10422850+5252850+52510059(Top 35%)1916(Top 16%)1916(Top 147%)
20K12.43 mi3.11 mi11502+5152613+2372613+23710126(Top 36%)2020(Top 17%)2020(Top 155%)
Half13.11 mi0.68 mi11477+252598+152598+1511166(Top 39%)2507(Top 21%)2507(Top 192%)
25K15.53 mi2.42 mi11257+2202518+802518+8010369(Top 37%)2273(Top 19%)2273(Top 174%)
30K18.64 mi3.11 mi11053+2042493+252493+2510355(Top 36%)2464(Top 20%)2464(Top 189%)
20M20.00 mi1.36 mi10954+992486+72486+710525(Top 37%)2699(Top 22%)2699(Top 207%)
21M21.00 mi1.00 mi10921+332508-222508-2210997(Top 39%)3092(Top 25%)3092(Top 237%)
35K21.75 mi0.75 mi10872+492509-12509-110336(Top 36%)2761(Top 23%)2761(Top 212%)
23M23.00 mi1.25 mi10864+82542-332542-3311368(Top 40%)3414(Top 28%)3414(Top 262%)
24M24.00 mi1.00 mi10810+542554-122554-1210457(Top 37%)3023(Top 25%)3023(Top 232%)
40K24.85 mi0.85 mi10711+992532+222532+228919(Top 31%)2416(Top 20%)2416(Top 185%)
25.2M25.20 mi0.35 mi10690+212529+32529+310955(Top 39%)3449(Top 28%)3449(Top 265%)
Finish26.22 mi1.02 mi10650+402547-182547-1810629(Top 37%)3274(Top 27%)3274(Top 251%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

10059

Females

1916

F50-54

1916

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11855

Females

2738

F50-54

2738

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

10059

Females

1916

F50-54

1916

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

10126

Females

2020

F50-54

2020

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11166

Females

2507

F50-54

2507

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10369

Females

2273

F50-54

2273

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10355

Females

2464

F50-54

2464

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10525

Females

2699

F50-54

2699

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10997

Females

3092

F50-54

3092

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10336

Females

2761

F50-54

2761

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11368

Females

3414

F50-54

3414

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10457

Females

3023

F50-54

3023

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8919

Females

2416

F50-54

2416

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10955

Females

3449

F50-54

3449

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10629

Females

3274

F50-54

3274

Passing Analysis

Category:
Athletes Passed
4229
Passed By
662
Net Change
+3567
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14217
5K → 10K117618+1158#14217#13059
10K → 15K10486+1042#13059#12017
15K → 20K53520+515#12017#11502
20K → Half4621+25#11502#11477
Half → 25K27252+220#11477#11257
25K → 30K330126+204#11257#11053
30K → 20M15859+99#11053#10954
20M → 21M11481+33#10954#10921
21M → 35K7930+49#10921#10872
35K → 23M113105+8#10872#10864
23M → 24M10046+54#10864#10810
24M → 40K11617+99#10810#10711
40K → 25.2M4726+21#10711#10690
25.2M → Finish9555+40#10690#10650
TOTALS4229662+3567
📊

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