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BOSTON MARATHON 2025

Jing Feng

Bib: 24558•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F55-59)
#0 / 994
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:21
Rank: #19789
Start → 5K
26:21 | 8:29/mi
10K· 6.21 mi
52:13
Rank: #19260 (+529)
5K → 10K
25:52 | 8:20/mi
15K· 9.32 mi
1:18:01
Rank: #18862 (+398)
10K → 15K
25:48 | 8:18/mi
20K· 12.43 mi
1:43:49
Rank: #18336 (+526)
15K → 20K
25:48 | 8:18/mi
Half· 13.11 mi
1:49:20
Rank: #18235 (+101)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:09:52
Rank: #17987 (+248)
Half → 25K
20:32 | 8:28/mi
30K· 18.64 mi
2:37:00
Rank: #17611 (+376)
25K → 30K
27:08 | 8:44/mi
20M
2:49:32
Rank: #17617 (-6)
30K → 20M
12:32 | 9:13/mi
21M
2:59:19
Rank: #17612 (+5)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
3:05:25
Rank: #17451 (+161)
21M → 35K
6:06 | 8:09/mi
23M
3:17:18
Rank: #17530 (-79)
35K → 23M
11:53 | 9:29/mi
24M
3:26:18
Rank: #17511 (+19)
23M → 24M
9:00 | 9:00/mi
40K· 24.85 mi
3:34:38
Rank: #17616 (-105)
24M → 40K
8:20 | 9:45/mi
25.2M
3:38:23
Rank: #17670 (-54)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
3:48:02
Rank: #17847 (-177)
25.2M → Finish
9:39 | 9:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:20
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:58:42
Pace9:03 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0226:218:2926:21
8:29
-
10K
6.21 mi11:52:5452:138:2425:52
8:20
-0:09
15K
9.32 mi12:18:421:18:018:2225:48
8:18
-0:02
20K
12.43 mi12:44:301:43:498:2125:48
8:18
0:00
Half
13.11 mi12:50:011:49:208:205:31
8:05
-0:13
25K
15.53 mi13:10:332:09:528:2220:32
8:28
+0:23
30K
18.64 mi13:37:412:37:008:2527:08
8:44
+0:16
20M
20.00 mi13:50:132:49:328:2912:32
9:13
+0:29
21M
21.00 mi14:00:002:59:198:329:47
9:47
+0:34
35K
21.75 mi14:06:063:05:258:326:06
8:09
-1:38
23M
23.00 mi14:17:593:17:188:3511:53
9:29
+1:20
24M
24.00 mi14:26:593:26:188:369:00
9:00
-0:29
40K
24.85 mi14:35:193:34:388:388:20
9:45
+0:45
25.2M
25.20 mi14:39:043:38:238:403:45
10:52
+1:07
Finish
26.22 mi14:48:433:48:028:429:39
9:28
-1:24

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

8:05 /mi

Average Pace

8:42 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:05

39% of race

Time at Steady Pace

1:23:01

36% of race

Time at Slower Pace

55:56

25% of race

Average Pace: 8:42 /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 mi11:27:0226:218:2926:21
8:29
#19789
10K
6.21 mi11:52:5452:138:2425:52
8:20
#19260
15K
9.32 mi12:18:421:18:018:2225:48
8:18
#18862
20K
12.43 mi12:44:301:43:498:2125:48
8:18
#18336
Half
13.11 mi12:50:011:49:208:205:31
8:05
#18235
25K
15.53 mi13:10:332:09:528:2220:32
8:28
#17987
30K
18.64 mi13:37:412:37:008:2527:08
8:44
#17611
20M
20.00 mi13:50:132:49:328:2912:32
9:13
#17617
21M
21.00 mi14:00:002:59:198:329:47
9:47
#17612
35K
21.75 mi14:06:063:05:258:326:06
8:09
#17451
23M
23.00 mi14:17:593:17:188:3511:53
9:29
#17530
24M
24.00 mi14:26:593:26:188:369:00
9:00
#17511
40K
24.85 mi14:35:193:34:388:388:20
9:45
#17616
25.2M
25.20 mi14:39:043:38:238:403:45
10:52
#17670
Finish
26.22 mi14:48:433:48:028:429:39
9:28
#17847
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi197897385738518096(Top 64%)6378(Top 52%)6378(Top 642%)
10K6.21 mi3.10 mi19260+5297044+3417044+34118728(Top 66%)6723(Top 55%)6723(Top 676%)
15K9.32 mi3.11 mi18862+3986833+2116833+21118096(Top 64%)6378(Top 52%)6378(Top 642%)
20K12.43 mi3.11 mi18336+5266532+3016532+30116968(Top 60%)5761(Top 47%)5761(Top 580%)
Half13.11 mi0.68 mi18235+1016480+526480+5216596(Top 58%)5542(Top 45%)5542(Top 558%)
25K15.53 mi2.42 mi17987+2486350+1306350+13017006(Top 60%)5862(Top 48%)5862(Top 590%)
30K18.64 mi3.11 mi17611+3766191+1596191+15916209(Top 57%)5596(Top 46%)5596(Top 563%)
20M20.00 mi1.36 mi17617-66216-256216-2517905(Top 63%)6654(Top 54%)6654(Top 669%)
21M21.00 mi1.00 mi17612+56226-106226-1017425(Top 61%)6495(Top 53%)6495(Top 653%)
35K21.75 mi0.75 mi17451+1616166+606166+6013384(Top 47%)4383(Top 36%)4383(Top 441%)
23M23.00 mi1.25 mi17530-796241-756241-7518665(Top 66%)7325(Top 60%)7325(Top 737%)
24M24.00 mi1.00 mi17511+196254-136254-1317388(Top 61%)6701(Top 55%)6701(Top 674%)
40K24.85 mi0.85 mi17616-1056343-896343-8919636(Top 69%)7957(Top 65%)7957(Top 801%)
25.2M25.20 mi0.35 mi17670-546382-396382-3920268(Top 71%)8288(Top 68%)8288(Top 834%)
Finish26.22 mi1.02 mi17847-1776488-1066488-10621070(Top 74%)8687(Top 71%)8687(Top 874%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18096

Females

6378

F55-59

6378

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18728

Females

6723

F55-59

6723

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18096

Females

6378

F55-59

6378

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16968

Females

5761

F55-59

5761

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16596

Females

5542

F55-59

5542

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

17006

Females

5862

F55-59

5862

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

16209

Females

5596

F55-59

5596

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17905

Females

6654

F55-59

6654

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17425

Females

6495

F55-59

6495

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13384

Females

4383

F55-59

4383

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18665

Females

7325

F55-59

7325

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

17388

Females

6701

F55-59

6701

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19636

Females

7957

F55-59

7957

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20268

Females

8288

F55-59

8288

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21070

Females

8687

F55-59

8687

Passing Analysis

Category:
Athletes Passed
3090
Passed By
1148
Net Change
+1942
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19789
5K → 10K62091+529#19789#19260
10K → 15K45052+398#19260#18862
15K → 20K54822+526#18862#18336
20K → Half1054+101#18336#18235
Half → 25K29446+248#18235#17987
25K → 30K43660+376#17987#17611
30K → 20M115121-6#17611#17617
20M → 21M106101+5#17617#17612
21M → 35K1654+161#17612#17451
35K → 23M92171-79#17451#17530
23M → 24M8162+19#17530#17511
24M → 40K40145-105#17511#17616
40K → 25.2M1569-54#17616#17670
25.2M → Finish23200-177#17670#17847
TOTALS30901148+1942
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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