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BOSTON MARATHON 2025

Jinhua Tong

Bib: 15952•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F45-49)
#0 / 1813
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
7:39/mi
23:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
49:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:38/mi
1:16:08
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:43:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:48:50
↑ 19↓ 370.5%
25K· 15.53 mi
8:50/mi
2:10:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:05/mi
2:38:27
↑ 181↓ 1480.2%
20M
9:12/mi
2:50:57
↑ 64↓ 500.2%
21M
9:40/mi
3:00:37
↑ 106↓ 241.6%
35K· 21.75 mi
8:33/mi
3:07:01
↑ 17↓ 861.7%
23M
9:02/mi
3:18:20
↑ 23↓ 630.6%
24M
8:40/mi
3:27:00
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:34:38
↓ 200.3%
25.2M
9:37/mi
3:37:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:46:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:50
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:57:50
Pace8:59 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3723:477:3923:47
7:39
-
10K
6.21 mi11:21:0849:187:5625:31
8:13
+0:34
15K
9.32 mi11:47:581:16:088:1026:50
8:38
+0:25
20K
12.43 mi12:14:511:43:018:1726:53
8:39
+0:01
Half
13.11 mi12:20:401:48:508:185:49
8:32
-0:07
25K
15.53 mi12:42:052:10:158:2321:25
8:50
+0:18
30K
18.64 mi13:10:172:38:278:3028:12
9:05
+0:15
20M
20.00 mi13:22:472:50:578:3312:30
9:12
+0:07
21M
21.00 mi13:32:273:00:378:369:40
9:40
+0:28
35K
21.75 mi13:38:513:07:018:366:24
8:33
-1:07
23M
23.00 mi13:50:103:18:208:3711:19
9:02
+0:29
24M
24.00 mi13:58:503:27:008:388:40
8:40
-0:22
40K
24.85 mi14:06:283:34:388:387:38
8:56
+0:16
25.2M
25.20 mi14:09:473:37:578:393:19
9:37
+0:41
Finish
26.22 mi14:18:303:46:408:398:43
8:33
-1:04

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

7:39 /mi

Average Pace

8:39 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:18

22% of race

Time at Steady Pace

1:44:44

46% of race

Time at Slower Pace

1:12:38

32% of race

Average Pace: 8:39 /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 mi10:55:3723:477:3923:47
7:39
#13587
10K
6.21 mi11:21:0849:187:5625:31
8:13
#15970
15K
9.32 mi11:47:581:16:088:1026:50
8:38
#17552
20K
12.43 mi12:14:511:43:018:1726:53
8:39
#17939
Half
13.11 mi12:20:401:48:508:185:49
8:32
#17995
25K
15.53 mi12:42:052:10:158:2321:25
8:50
#18171
30K
18.64 mi13:10:172:38:278:3028:12
9:05
#18126
20M
20.00 mi13:22:472:50:578:3312:30
9:12
#18079
21M
21.00 mi13:32:273:00:378:369:40
9:40
#18021
35K
21.75 mi13:38:513:07:018:366:24
8:33
#17926
23M
23.00 mi13:50:103:18:208:3711:19
9:02
#17808
24M
24.00 mi13:58:503:27:008:388:40
8:40
#17683
40K
24.85 mi14:06:283:34:388:387:38
8:56
#17615
25.2M
25.20 mi14:09:473:37:578:393:19
9:37
#17565
Finish
26.22 mi14:18:303:46:408:398:43
8:33
#17527
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi135873651365120126(Top 71%)7499(Top 61%)7499(Top 414%)
10K6.21 mi3.10 mi15970-23835120-14695120-146917989(Top 63%)6283(Top 51%)6283(Top 347%)
15K9.32 mi3.11 mi17552-15826044-9246044-92420126(Top 71%)7499(Top 61%)7499(Top 414%)
20K12.43 mi3.11 mi17939-3876301-2576301-25719167(Top 67%)7000(Top 57%)7000(Top 386%)
Half13.11 mi0.68 mi17995-566335-346335-3419383(Top 68%)7104(Top 58%)7104(Top 392%)
25K15.53 mi2.42 mi18171-1766458-1236458-12319106(Top 67%)7026(Top 57%)7026(Top 388%)
30K18.64 mi3.11 mi18126+456468-106468-1018078(Top 64%)6617(Top 54%)6617(Top 365%)
20M20.00 mi1.36 mi18079+476468646817789(Top 63%)6587(Top 54%)6587(Top 363%)
21M21.00 mi1.00 mi18021+586446+226446+2216892(Top 59%)6202(Top 51%)6202(Top 342%)
35K21.75 mi0.75 mi17926+956398+486398+4815848(Top 56%)5705(Top 47%)5705(Top 315%)
23M23.00 mi1.25 mi17808+1186386+126386+1216503(Top 58%)6174(Top 50%)6174(Top 341%)
24M24.00 mi1.00 mi17683+1256351+356351+3515571(Top 55%)5684(Top 46%)5684(Top 314%)
40K24.85 mi0.85 mi17615+686342+96342+915927(Top 56%)6007(Top 49%)6007(Top 331%)
25.2M25.20 mi0.35 mi17565+506328+146328+1415264(Top 54%)5705(Top 47%)5705(Top 315%)
Finish26.22 mi1.02 mi17527+386328632816600(Top 58%)6358(Top 52%)6358(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20126

Females

7499

F45-49

7499

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17989

Females

6283

F45-49

6283

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20126

Females

7499

F45-49

7499

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19167

Females

7000

F45-49

7000

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19383

Females

7104

F45-49

7104

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

19106

Females

7026

F45-49

7026

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18078

Females

6617

F45-49

6617

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17789

Females

6587

F45-49

6587

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16892

Females

6202

F45-49

6202

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

15848

Females

5705

F45-49

5705

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16503

Females

6174

F45-49

6174

23M→24M

23.0 - 24.0 mi

Top 55%
×6story building
+12ft-82ft

Overall

15571

Females

5684

F45-49

5684

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15927

Females

6007

F45-49

6007

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15264

Females

5705

F45-49

5705

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16600

Females

6358

F45-49

6358

Passing Analysis

Category:
Athletes Passed
1441
Passed By
5381
Net Change
-3940
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13587
5K → 10K132396-2383#13587#15970
10K → 15K231605-1582#15970#17552
15K → 20K88475-387#17552#17939
20K → Half2278-56#17939#17995
Half → 25K116292-176#17995#18171
25K → 30K267222+45#18171#18126
30K → 20M14497+47#18126#18079
20M → 21M11658+58#18079#18021
21M → 35K10813+95#18021#17926
35K → 23M16547+118#17926#17808
23M → 24M15025+125#17808#17683
24M → 40K9830+68#17683#17615
40K → 25.2M588+50#17615#17565
25.2M → Finish7335+38#17565#17527
TOTALS14415381-3940
📊

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