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BOSTON MARATHON 2025

Helen Zeng

Bib: 24019•F

BC

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

Start
0:00:00
Race begins
5K· 3.11 mi
26:33
Rank: #20186
Start → 5K
26:33 | 8:33/mi
10K· 6.21 mi
52:59
Rank: #20001 (+185)
5K → 10K
26:26 | 8:30/mi
15K· 9.32 mi
1:21:18
Rank: #20867 (-866)
10K → 15K
28:19 | 9:07/mi
20K· 12.43 mi
1:48:31
Rank: #20599 (+268)
15K → 20K
27:13 | 8:46/mi
Half· 13.11 mi
1:54:35
Rank: #20630 (-31)
20K → Half
6:04 | 8:54/mi
25K· 15.53 mi
2:16:17
Rank: #20486 (+144)
Half → 25K
21:42 | 8:57/mi
30K· 18.64 mi
2:45:49
Rank: #20353 (+133)
25K → 30K
29:32 | 9:30/mi
20M
2:58:55
Rank: #20309 (+44)
30K → 20M
13:06 | 9:38/mi
21M
3:09:39
Rank: #20339 (-30)
20M → 21M
10:44 | 10:44/mi
35K· 21.75 mi
3:17:54
Rank: #20577 (-238)
21M → 35K
8:15 | 11:02/mi
23M
3:36:42
Rank: #21693 (-1116)
35K → 23M
18:48 | 15:01/mi
24M
3:46:16
Rank: #21614 (+79)
23M → 24M
9:34 | 9:34/mi
40K· 24.85 mi
4:04:23
Rank: #22774 (-1160)
24M → 40K
18:07 | 21:11/mi
25.2M
4:08:58
Rank: #22845 (-71)
40K → 25.2M
4:35 | 13:17/mi
Finish· 26.22 mi
4:19:00
Rank: #22832 (+13)
25.2M → Finish
10:02 | 9:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:35
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:24:25
Pace11:01 /mi
📊Positive Split: 26.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:3826:338:3326:33
8:33
-
10K
6.21 mi11:53:0452:598:3226:26
8:30
-0:03
15K
9.32 mi12:21:231:21:188:4328:19
9:07
+0:37
20K
12.43 mi12:48:361:48:318:4427:13
8:46
-0:21
Half
13.11 mi12:54:401:54:358:446:04
8:54
+0:08
25K
15.53 mi13:16:222:16:178:4621:42
8:57
+0:03
30K
18.64 mi13:45:542:45:498:5429:32
9:30
+0:33
20M
20.00 mi13:59:002:58:558:5713:06
9:38
+0:08
21M
21.00 mi14:09:443:09:399:0210:44
10:44
+1:06
35K
21.75 mi14:17:593:17:549:068:15
11:02
+0:18
23M
23.00 mi14:36:473:36:429:2518:48
15:01
+3:59
24M
24.00 mi14:46:213:46:169:269:34
9:34
-5:27
40K
24.85 mi15:04:284:04:239:5018:07
21:11
+11:37
25.2M
25.20 mi15:09:034:08:589:534:35
13:17
-7:54
Finish
26.22 mi15:19:054:19:009:5310:02
9:51
-3:26

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

8:30 /mi

Average Pace

9:53 /mi

Slowest Pace

21:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:37:30

84% of race

Time at Slower Pace

41:30

16% of race

Average Pace: 9:53 /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 mi11:26:3826:338:3326:33
8:33
#20186
10K
6.21 mi11:53:0452:598:3226:26
8:30
#20001
15K
9.32 mi12:21:231:21:188:4328:19
9:07
#20867
20K
12.43 mi12:48:361:48:318:4427:13
8:46
#20599
Half
13.11 mi12:54:401:54:358:446:04
8:54
#20630
25K
15.53 mi13:16:222:16:178:4621:42
8:57
#20486
30K
18.64 mi13:45:542:45:498:5429:32
9:30
#20353
20M
20.00 mi13:59:002:58:558:5713:06
9:38
#20309
21M
21.00 mi14:09:443:09:399:0210:44
10:44
#20339
35K
21.75 mi14:17:593:17:549:068:15
11:02
#20577
23M
23.00 mi14:36:473:36:429:2518:48
15:01
#21693
24M
24.00 mi14:46:213:46:169:269:34
9:34
#21614
40K
24.85 mi15:04:284:04:239:5018:07
21:11
#22774
25.2M
25.20 mi15:09:034:08:589:534:35
13:17
#22845
Finish
26.22 mi15:19:054:19:009:5310:02
9:51
#22832
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi201867611761122529(Top 79%)8850(Top 72%)8850(Top 890%)
10K6.21 mi3.10 mi20001+1857472+1397472+13919864(Top 70%)7397(Top 60%)7397(Top 744%)
15K9.32 mi3.11 mi20867-8667965-4937965-49322529(Top 79%)8850(Top 72%)8850(Top 890%)
20K12.43 mi3.11 mi20599+2687816+1497816+14919751(Top 70%)7348(Top 60%)7348(Top 739%)
Half13.11 mi0.68 mi20630-317832-167832-1621420(Top 75%)8281(Top 68%)8281(Top 833%)
25K15.53 mi2.42 mi20486+1447766+667766+6619699(Top 69%)7368(Top 60%)7368(Top 741%)
30K18.64 mi3.11 mi20353+1337732+347732+3419972(Top 70%)7651(Top 63%)7651(Top 770%)
20M20.00 mi1.36 mi20309+447732773219755(Top 70%)7663(Top 63%)7663(Top 771%)
21M21.00 mi1.00 mi20339-307770-387770-3820699(Top 73%)8298(Top 68%)8298(Top 835%)
35K21.75 mi0.75 mi20577-2387907-1377907-13724265(Top 85%)10194(Top 83%)10194(Top 1026%)
23M23.00 mi1.25 mi21693-11168542-6358542-63527920(Top 98%)12059(Top 99%)12059(Top 1213%)
24M24.00 mi1.00 mi21614+798517+258517+2519888(Top 70%)8032(Top 66%)8032(Top 808%)
40K24.85 mi0.85 mi22774-11609182-6659182-66528393(Top 100%)12226(Top 100%)12226(Top 1230%)
25.2M25.20 mi0.35 mi22845-719228-469228-4625423(Top 90%)10894(Top 89%)10894(Top 1096%)
Finish26.22 mi1.02 mi22832+139238-109238-1022458(Top 79%)9401(Top 77%)9401(Top 946%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22529

Females

8850

F55-59

8850

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19864

Females

7397

F55-59

7397

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22529

Females

8850

F55-59

8850

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

19751

Females

7348

F55-59

7348

20K→Half

12.4 - 13.1 mi

Top 75%
×2stories
+19ft-37ft

Overall

21420

Females

8281

F55-59

8281

Half→25K

13.1 - 15.5 mi

Top 69%
×4stories
+66ft-88ft

Overall

19699

Females

7368

F55-59

7368

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

19972

Females

7651

F55-59

7651

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19755

Females

7663

F55-59

7663

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20699

Females

8298

F55-59

8298

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24265

Females

10194

F55-59

10194

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

27920

Females

12059

F55-59

12059

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19888

Females

8032

F55-59

8032

24M→40K

24.0 - 24.9 mi

Top 100%
×1story
+6ft-20ft

Overall

28393

Females

12226

F55-59

12226

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25423

Females

10894

F55-59

10894

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

22458

Females

9401

F55-59

9401

Passing Analysis

Category:
Athletes Passed
1670
Passed By
4316
Net Change
-2646
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20186
5K → 10K385200+185#20186#20001
10K → 15K45911-866#20001#20867
15K → 20K33062+268#20867#20599
20K → Half2657-31#20599#20630
Half → 25K22076+144#20630#20486
25K → 30K284151+133#20486#20353
30K → 20M12076+44#20353#20309
20M → 21M81111-30#20309#20339
21M → 35K17255-238#20339#20577
35K → 23M91125-1116#20577#21693
23M → 24M9314+79#21693#21614
24M → 40K01160-1160#21614#22774
40K → 25.2M677-71#22774#22845
25.2M → Finish5441+13#22845#22832
TOTALS16704316-2646
📊

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