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BOSTON MARATHON 2025

Jillian Zeller

Bib: 26865•F

GA

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
28:19
Rank: #22903
Start → 5K
28:19 | 9:07/mi
10K· 6.21 mi
56:54
Rank: #23055 (-152)
5K → 10K
28:35 | 9:12/mi
15K· 9.32 mi
1:25:42
Rank: #23084 (-29)
10K → 15K
28:48 | 9:16/mi
20K· 12.43 mi
1:57:23
Rank: #23613 (-529)
15K → 20K
31:41 | 10:12/mi
Half· 13.11 mi
2:03:43
Rank: #23586 (+27)
20K → Half
6:20 | 9:17/mi
25K· 15.53 mi
2:27:31
Rank: #23409 (+177)
Half → 25K
23:48 | 9:49/mi
30K· 18.64 mi
3:03:14
Rank: #23761 (-352)
25K → 30K
35:43 | 11:30/mi
20M
3:18:17
Rank: #23770 (-9)
30K → 20M
15:03 | 11:04/mi
21M
3:29:36
Rank: #23676 (+94)
20M → 21M
11:19 | 11:19/mi
35K· 21.75 mi
3:37:31
Rank: #23668 (+8)
21M → 35K
7:55 | 10:35/mi
23M
3:52:02
Rank: #23718 (-50)
35K → 23M
14:31 | 11:36/mi
24M
4:03:39
Rank: #23795 (-77)
23M → 24M
11:37 | 11:37/mi
40K· 24.85 mi
4:13:01
Rank: #23763 (+32)
24M → 40K
9:22 | 10:57/mi
25.2M
4:16:42
Rank: #23729 (+34)
40K → 25.2M
3:41 | 10:41/mi
Finish· 26.22 mi
4:26:30
Rank: #23645 (+84)
25.2M → Finish
9:48 | 9:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:43
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:22:47
Pace10:54 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0728:199:0728:19
9:07
-
10K
6.21 mi12:13:4256:549:0928:35
9:12
+0:05
15K
9.32 mi12:42:301:25:429:1228:48
9:16
+0:04
20K
12.43 mi13:14:111:57:239:2731:41
10:12
+0:56
Half
13.11 mi13:20:312:03:439:266:20
9:17
-0:55
25K
15.53 mi13:44:192:27:319:3023:48
9:49
+0:32
30K
18.64 mi14:20:023:03:149:5035:43
11:30
+1:41
20M
20.00 mi14:35:053:18:179:5515:03
11:04
-0:26
21M
21.00 mi14:46:243:29:369:5911:19
11:19
+0:15
35K
21.75 mi14:54:193:37:3110:007:55
10:35
-0:44
23M
23.00 mi15:08:503:52:0210:0514:31
11:36
+1:01
24M
24.00 mi15:20:274:03:3910:0911:37
11:37
+0:01
40K
24.85 mi15:29:494:13:0110:119:22
10:57
-0:40
25.2M
25.20 mi15:33:304:16:4210:113:41
10:41
-0:16
Finish
26.22 mi15:43:184:26:3010:109:48
9:37
-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

9:07 /mi

Average Pace

10:10 /mi

Slowest Pace

11:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:38

47% of race

Time at Steady Pace

52:39

20% of race

Time at Slower Pace

1:28:13

33% of race

Average Pace: 10:10 /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 mi11:45:0728:199:0728:19
9:07
#22903
10K
6.21 mi12:13:4256:549:0928:35
9:12
#23055
15K
9.32 mi12:42:301:25:429:1228:48
9:16
#23084
20K
12.43 mi13:14:111:57:239:2731:41
10:12
#23613
Half
13.11 mi13:20:312:03:439:266:20
9:17
#23586
25K
15.53 mi13:44:192:27:319:3023:48
9:49
#23409
30K
18.64 mi14:20:023:03:149:5035:43
11:30
#23761
20M
20.00 mi14:35:053:18:179:5515:03
11:04
#23770
21M
21.00 mi14:46:243:29:369:5911:19
11:19
#23676
35K
21.75 mi14:54:193:37:3110:007:55
10:35
#23668
23M
23.00 mi15:08:503:52:0210:0514:31
11:36
#23718
24M
24.00 mi15:20:274:03:3910:0911:37
11:37
#23795
40K
24.85 mi15:29:494:13:0110:119:22
10:57
#23763
25.2M
25.20 mi15:33:304:16:4210:113:41
10:41
#23729
Finish
26.22 mi15:43:184:26:3010:109:48
9:37
#23645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi229039123912323123(Top 81%)9168(Top 75%)9168(Top 168%)
10K6.21 mi3.10 mi23055-1529180-579180-5723208(Top 82%)9241(Top 76%)9241(Top 169%)
15K9.32 mi3.11 mi23084-299177+39177+323123(Top 81%)9168(Top 75%)9168(Top 168%)
20K12.43 mi3.11 mi23613-5299469-2929469-29224637(Top 87%)10068(Top 82%)10068(Top 184%)
Half13.11 mi0.68 mi23586+279456+139456+1322948(Top 81%)9126(Top 75%)9126(Top 167%)
25K15.53 mi2.42 mi23409+1779366+909366+9022814(Top 80%)9096(Top 74%)9096(Top 166%)
30K18.64 mi3.11 mi23761-3529605-2399605-23924840(Top 87%)10318(Top 84%)10318(Top 189%)
20M20.00 mi1.36 mi23770-99629-249629-2423757(Top 84%)9824(Top 80%)9824(Top 180%)
21M21.00 mi1.00 mi23676+949599+309599+3022205(Top 78%)9085(Top 74%)9085(Top 166%)
35K21.75 mi0.75 mi23668+89600-19600-123354(Top 82%)9733(Top 80%)9733(Top 178%)
23M23.00 mi1.25 mi23718-509645-459645-4524413(Top 86%)10304(Top 84%)10304(Top 188%)
24M24.00 mi1.00 mi23795-779701-569701-5625104(Top 88%)10677(Top 87%)10677(Top 195%)
40K24.85 mi0.85 mi23763+329700+19700+123056(Top 81%)9736(Top 80%)9736(Top 178%)
25.2M25.20 mi0.35 mi23729+349687+139687+1319731(Top 69%)8042(Top 66%)8042(Top 147%)
Finish26.22 mi1.02 mi23645+849662+259662+2521638(Top 76%)8985(Top 73%)8985(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

23123

Females

9168

F18-39

9168

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23208

Females

9241

F18-39

9241

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

23123

Females

9168

F18-39

9168

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24637

Females

10068

F18-39

10068

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

22948

Females

9126

F18-39

9126

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22814

Females

9096

F18-39

9096

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24840

Females

10318

F18-39

10318

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23757

Females

9824

F18-39

9824

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22205

Females

9085

F18-39

9085

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

23354

Females

9733

F18-39

9733

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24413

Females

10304

F18-39

10304

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25104

Females

10677

F18-39

10677

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23056

Females

9736

F18-39

9736

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19731

Females

8042

F18-39

8042

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21638

Females

8985

F18-39

8985

Passing Analysis

Category:
Athletes Passed
1198
Passed By
1940
Net Change
-742
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22903
5K → 10K162314-152#22903#23055
10K → 15K161190-29#23055#23084
15K → 20K53582-529#23084#23613
20K → Half358+27#23613#23586
Half → 25K22144+177#23586#23409
25K → 30K66418-352#23409#23761
30K → 20M7281-9#23761#23770
20M → 21M12127+94#23770#23676
21M → 35K5042+8#23676#23668
35K → 23M50100-50#23668#23718
23M → 24M2299-77#23718#23795
24M → 40K5725+32#23795#23763
40K → 25.2M340+34#23763#23729
25.2M → Finish9410+84#23729#23645
TOTALS11981940-742
📊

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