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BOSTON MARATHON 2025

Elizabeth Zielinski

Bib: 28702•F

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:22
Rank: #21541
Start → 5K
27:22 | 8:49/mi
10K· 6.21 mi
55:39
Rank: #22228 (-687)
5K → 10K
28:17 | 9:06/mi
15K· 9.32 mi
1:25:36
Rank: #23025 (-797)
10K → 15K
29:57 | 9:38/mi
20K· 12.43 mi
2:00:33
Rank: #24299 (-1274)
15K → 20K
34:57 | 11:15/mi
Half· 13.11 mi
2:09:36
Rank: #24712 (-413)
20K → Half
9:03 | 13:16/mi
25K· 15.53 mi
2:37:52
Rank: #25049 (-337)
Half → 25K
28:16 | 11:39/mi
30K· 18.64 mi
3:17:51
Rank: #25434 (-385)
25K → 30K
39:59 | 12:52/mi
20M
3:34:53
Rank: #25492 (-58)
30K → 20M
17:02 | 12:32/mi
21M
3:47:27
Rank: #25453 (+39)
20M → 21M
12:34 | 12:34/mi
35K· 21.75 mi
3:56:26
Rank: #25461 (-8)
21M → 35K
8:59 | 12:00/mi
23M
4:11:57
Rank: #25482 (-21)
35K → 23M
15:31 | 12:24/mi
24M
4:23:42
Rank: #25489 (-7)
23M → 24M
11:45 | 11:45/mi
40K· 24.85 mi
4:34:32
Rank: #25524 (-35)
24M → 40K
10:50 | 12:40/mi
25.2M
4:38:37
Rank: #25488 (+36)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:48:56
Rank: #25424 (+64)
25.2M → Finish
10:19 | 10:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:36
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:39:20
Pace12:09 /mi
📊Positive Split: 22.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3827:228:4927:22
8:49
-
10K
6.21 mi12:13:5555:398:5728:17
9:06
+0:17
15K
9.32 mi12:43:521:25:369:1129:57
9:38
+0:32
20K
12.43 mi13:18:492:00:339:4234:57
11:15
+1:37
Half
13.11 mi13:27:522:09:369:539:03
13:16
+2:01
25K
15.53 mi13:56:082:37:5210:1028:16
11:39
-1:37
30K
18.64 mi14:36:073:17:5110:3739:59
12:52
+1:13
20M
20.00 mi14:53:093:34:5310:4517:02
12:32
-0:20
21M
21.00 mi15:05:433:47:2710:5012:34
12:34
+0:02
35K
21.75 mi15:14:423:56:2610:528:59
12:00
-0:34
23M
23.00 mi15:30:134:11:5710:5715:31
12:24
+0:24
24M
24.00 mi15:41:584:23:4210:5911:45
11:45
-0:39
40K
24.85 mi15:52:484:34:3211:0310:50
12:40
+0:55
25.2M
25.20 mi15:56:534:38:3711:034:05
11:50
-0:50
Finish
26.22 mi16:07:124:48:5611:0210:19
10:07
-1:43

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

8:49 /mi

Average Pace

11:02 /mi

Slowest Pace

13:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:55

33% of race

Time at Steady Pace

1:43:33

36% of race

Time at Slower Pace

1:29:28

31% of race

Average Pace: 11:01 /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 mi11:45:3827:228:4927:22
8:49
#21541
10K
6.21 mi12:13:5555:398:5728:17
9:06
#22228
15K
9.32 mi12:43:521:25:369:1129:57
9:38
#23025
20K
12.43 mi13:18:492:00:339:4234:57
11:15
#24299
Half
13.11 mi13:27:522:09:369:539:03
13:16
#24712
25K
15.53 mi13:56:082:37:5210:1028:16
11:39
#25049
30K
18.64 mi14:36:073:17:5110:3739:59
12:52
#25434
20M
20.00 mi14:53:093:34:5310:4517:02
12:32
#25492
21M
21.00 mi15:05:433:47:2710:5012:34
12:34
#25453
35K
21.75 mi15:14:423:56:2610:528:59
12:00
#25461
23M
23.00 mi15:30:134:11:5710:5715:31
12:24
#25482
24M
24.00 mi15:41:584:23:4210:5911:45
11:45
#25489
40K
24.85 mi15:52:484:34:3211:0310:50
12:40
#25524
25.2M
25.20 mi15:56:534:38:3711:034:05
11:50
#25488
Finish
26.22 mi16:07:124:48:5611:0210:19
10:07
#25424
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi215418383838324117(Top 85%)9739(Top 80%)9739(Top 178%)
10K6.21 mi3.10 mi22228-6878742-3598742-35922822(Top 80%)9034(Top 74%)9034(Top 165%)
15K9.32 mi3.11 mi23025-7979141-3999141-39924117(Top 85%)9739(Top 80%)9739(Top 178%)
20K12.43 mi3.11 mi24299-12749865-7249865-72426340(Top 93%)10998(Top 90%)10998(Top 201%)
Half13.11 mi0.68 mi24712-41310077-21210077-21228094(Top 99%)12064(Top 99%)12064(Top 221%)
25K15.53 mi2.42 mi25049-33710279-20210279-20226046(Top 92%)10885(Top 89%)10885(Top 199%)
30K18.64 mi3.11 mi25434-38510519-24010519-24026547(Top 93%)11247(Top 92%)11247(Top 206%)
20M20.00 mi1.36 mi25492-5810570-5110570-5125935(Top 91%)10982(Top 90%)10982(Top 201%)
21M21.00 mi1.00 mi25453+3910561+910561+924467(Top 86%)10277(Top 84%)10277(Top 188%)
35K21.75 mi0.75 mi25461-810573-1210573-1225849(Top 91%)11027(Top 90%)11027(Top 202%)
23M23.00 mi1.25 mi25482-2110601-2810601-2825642(Top 90%)10928(Top 89%)10928(Top 200%)
24M24.00 mi1.00 mi25489-710609-810609-825314(Top 89%)10782(Top 88%)10782(Top 197%)
40K24.85 mi0.85 mi25524-3510641-3210641-3225883(Top 91%)11085(Top 91%)11085(Top 203%)
25.2M25.20 mi0.35 mi25488+3610626+1510626+1522823(Top 80%)9591(Top 78%)9591(Top 175%)
Finish26.22 mi1.02 mi25424+6410589+3710589+3723268(Top 82%)9810(Top 80%)9810(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24117

Females

9739

F18-39

9739

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22822

Females

9034

F18-39

9034

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24117

Females

9739

F18-39

9739

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

26340

Females

10998

F18-39

10998

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

28094

Females

12064

F18-39

12064

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26046

Females

10885

F18-39

10885

25K→30K

15.5 - 18.6 mi

Top 93%
×9stories
+181ft-148ft

Overall

26547

Females

11247

F18-39

11247

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

25935

Females

10982

F18-39

10982

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

24467

Females

10277

F18-39

10277

21M→35K

21.0 - 21.8 mi

Top 91%
×7stories
+17ft-86ft

Overall

25849

Females

11027

F18-39

11027

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25642

Females

10928

F18-39

10928

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

25314

Females

10782

F18-39

10782

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25883

Females

11085

F18-39

11085

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22823

Females

9591

F18-39

9591

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

23268

Females

9810

F18-39

9810

Passing Analysis

Category:
Athletes Passed
501
Passed By
4384
Net Change
-3883
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21541
5K → 10K71758-687#21541#22228
10K → 15K38835-797#22228#23025
15K → 20K81282-1274#23025#24299
20K → Half0413-413#24299#24712
Half → 25K25362-337#24712#25049
25K → 30K29414-385#25049#25434
30K → 20M3795-58#25434#25492
20M → 21M6526+39#25492#25453
21M → 35K1927-8#25453#25461
35K → 23M3758-21#25461#25482
23M → 24M4148-7#25482#25489
24M → 40K1853-35#25489#25524
40K → 25.2M415+36#25524#25488
25.2M → Finish728+64#25488#25424
TOTALS5014384-3883
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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