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BOSTON MARATHON 2025

Jing Zhang

NY

Bib: 17922 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 35%
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
7:11/mi
22:19
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:12/mi
44:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:24/mi
1:07:40
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:41/mi
1:31:33
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:36/mi
1:36:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:46/mi
1:55:34
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:01/mi
2:20:29
↑ 181↓ 1480.2%
138 ft elev
20M
8:14/mi
2:31:40
↑ 64↓ 500.2%
148 ft elev
21M
8:37/mi
2:40:17
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:48/mi
2:46:07
↑ 17↓ 861.7%
156 ft elev
23M
7:59/mi
2:56:07
↑ 23↓ 630.6%
116 ft elev
24M
7:47/mi
3:03:54
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:53/mi
3:10:38
↓ 200.3%
20 ft elev
25.2M
8:30/mi
3:13:34
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:35/mi
3:21:18
↑ 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
Time1:36:44
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time1:44:34
Pace7:59 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:4322:197:1122:19
7:11
-
10K
6.21 mi11:35:0644:427:1222:23
7:12
+0:01
15K
9.32 mi11:58:041:07:407:1622:58
7:24
+0:12
20K
12.43 mi12:21:571:31:337:2223:53
7:41
+0:17
Half
13.11 mi12:27:081:36:447:235:11
7:36
-0:05
25K
15.53 mi12:45:581:55:347:2618:50
7:46
+0:10
30K
18.64 mi13:10:532:20:297:3224:55
8:01
+0:15
20M
20.00 mi13:22:042:31:407:3511:11
8:14
+0:13
21M
21.00 mi13:30:412:40:177:388:37
8:37
+0:23
35K
21.75 mi13:36:312:46:077:385:50
7:48
-0:49
23M
23.00 mi13:46:312:56:077:3910:00
7:59
+0:11
24M
24.00 mi13:54:183:03:547:407:47
7:47
-0:12
40K
24.85 mi14:01:023:10:387:406:44
7:53
+0:06
25.2M
25.20 mi14:03:583:13:347:412:56
8:30
+0:37
Finish
26.22 mi14:11:423:21:187:417:44
7:35
-0:55

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

7:11 /mi

Average Pace

7:41 /mi

Slowest Pace

8:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:23:39

71% of race

Time at Steady Pace

46:06

23% of race

Time at Slower Pace

11:33

6% of race

Average Pace: 7:41 /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 mi11:12:4322:197:1122:19
7:11
#9337
10K
6.21 mi11:35:0644:427:1222:23
7:12
#9416
15K
9.32 mi11:58:041:07:407:1622:58
7:24
#9856
20K
12.43 mi12:21:571:31:337:2223:53
7:41
#10466
Half
13.11 mi12:27:081:36:447:235:11
7:36
#10569
25K
15.53 mi12:45:581:55:347:2618:50
7:46
#10805
30K
18.64 mi13:10:532:20:297:3224:55
8:01
#10922
20M
20.00 mi13:22:042:31:407:3511:11
8:14
#10953
21M
21.00 mi13:30:412:40:177:388:37
8:37
#10933
35K
21.75 mi13:36:312:46:077:385:50
7:48
#10907
23M
23.00 mi13:46:312:56:077:3910:00
7:59
#10796
24M
24.00 mi13:54:183:03:547:407:47
7:47
#10718
40K
24.85 mi14:01:023:10:387:406:44
7:53
#10637
25.2M
25.20 mi14:03:583:13:347:412:56
8:30
#10581
Finish
26.22 mi14:11:423:21:187:417:44
7:35
#10524
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi93371526152610822(Top 38%)2285(Top 19%)2285(Top 42%)
10K6.21 mi3.10 mi9416-791539-131539-139545(Top 34%)1621(Top 13%)1621(Top 30%)
15K9.32 mi3.11 mi9856-4401778-2391778-23910822(Top 38%)2285(Top 19%)2285(Top 42%)
20K12.43 mi3.11 mi10466-6102083-3052083-30512292(Top 43%)3159(Top 26%)3159(Top 58%)
Half13.11 mi0.68 mi10569-1032132-492132-4912560(Top 44%)3244(Top 27%)3244(Top 59%)
25K15.53 mi2.42 mi10805-2362286-1542286-15412085(Top 43%)3156(Top 26%)3156(Top 58%)
30K18.64 mi3.11 mi10922-1172424-1382424-13811538(Top 41%)3053(Top 25%)3053(Top 56%)
20M20.00 mi1.36 mi10953-312485-612485-6112006(Top 42%)3439(Top 28%)3439(Top 63%)
21M21.00 mi1.00 mi10933+202513-282513-2811217(Top 39%)3197(Top 26%)3197(Top 58%)
35K21.75 mi0.75 mi10907+262529-162529-1610827(Top 38%)3010(Top 25%)3010(Top 55%)
23M23.00 mi1.25 mi10796+1112505+242505+249945(Top 35%)2712(Top 22%)2712(Top 50%)
24M24.00 mi1.00 mi10718+782504+12504+19715(Top 34%)2669(Top 22%)2669(Top 49%)
40K24.85 mi0.85 mi10637+812488+162488+169327(Top 33%)2601(Top 21%)2601(Top 48%)
25.2M25.20 mi0.35 mi10581+562478+102478+108891(Top 31%)2475(Top 20%)2475(Top 45%)
Finish26.22 mi1.02 mi10524+572487-92487-99862(Top 35%)2921(Top 24%)2921(Top 53%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10822

Females

2285

F18-39

2285

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9545

Females

1621

F18-39

1621

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10822

Females

2285

F18-39

2285

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12292

Females

3159

F18-39

3159

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

12560

Females

3244

F18-39

3244

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12085

Females

3156

F18-39

3156

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11538

Females

3053

F18-39

3053

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

12006

Females

3439

F18-39

3439

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11217

Females

3197

F18-39

3197

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10827

Females

3010

F18-39

3010

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9945

Females

2712

F18-39

2712

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9715

Females

2669

F18-39

2669

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9327

Females

2601

F18-39

2601

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8891

Females

2475

F18-39

2475

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9862

Females

2921

F18-39

2921

Passing Analysis

Category:
Athletes Passed
1470
Passed By
2654
Net Change
-1187
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9337
5K → 10K192271-79#9337#9416
10K → 15K65504-440#9416#9856
15K → 20K56664-610#9856#10466
20K → Half11114-103#10466#10569
Half → 25K103339-236#10569#10805
25K → 30K212329-117#10805#10922
30K → 20M103134-31#10922#10953
20M → 21M10989+20#10953#10933
21M → 35K7044+26#10933#10907
35K → 23M15443+111#10907#10796
23M → 24M11234+78#10796#10718
24M → 40K11029+81#10718#10637
40K → 25.2M7014+56#10637#10581
25.2M → Finish10346+57#10581#10524
TOTALS14702654-1187
📊

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