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BOSTON MARATHON 2025

Jacklyn Middleton

Bib: 30889•F

MA

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
29:32
Rank: #24255
Start → 5K
29:32 | 9:30/mi
10K· 6.21 mi
59:52
Rank: #24552 (-297)
5K → 10K
30:20 | 9:46/mi
15K· 9.32 mi
1:31:07
Rank: #24764 (-212)
10K → 15K
31:15 | 10:04/mi
20K· 12.43 mi
2:03:02
Rank: #24757 (+7)
15K → 20K
31:55 | 10:16/mi
Half· 13.11 mi
2:09:58
Rank: #24786 (-29)
20K → Half
6:56 | 10:10/mi
25K· 15.53 mi
2:35:45
Rank: #24772 (+14)
Half → 25K
25:47 | 10:38/mi
30K· 18.64 mi
3:10:10
Rank: #24658 (+114)
25K → 30K
34:25 | 11:05/mi
20M
3:25:28
Rank: #24629 (+29)
30K → 20M
15:18 | 11:16/mi
21M
3:37:13
Rank: #24556 (+73)
20M → 21M
11:45 | 11:45/mi
35K· 21.75 mi
3:45:29
Rank: #24564 (-8)
21M → 35K
8:16 | 11:03/mi
23M
4:00:27
Rank: #24609 (-45)
35K → 23M
14:58 | 11:57/mi
24M
4:11:42
Rank: #24594 (+15)
23M → 24M
11:15 | 11:15/mi
40K· 24.85 mi
4:22:47
Rank: #24688 (-94)
24M → 40K
11:05 | 12:58/mi
25.2M
4:26:51
Rank: #24666 (+22)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:37:30
Rank: #24654 (+12)
25.2M → Finish
10:39 | 10:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:58
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:27:32
Pace11:15 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:3329:329:3029:32
9:30
-
10K
6.21 mi12:24:5359:529:3830:20
9:46
+0:16
15K
9.32 mi12:56:081:31:079:4731:15
10:04
+0:18
20K
12.43 mi13:28:032:03:029:5431:55
10:16
+0:12
Half
13.11 mi13:34:592:09:589:556:56
10:10
-0:06
25K
15.53 mi14:00:462:35:4510:0225:47
10:38
+0:28
30K
18.64 mi14:35:113:10:1010:1234:25
11:05
+0:27
20M
20.00 mi14:50:293:25:2810:1615:18
11:16
+0:11
21M
21.00 mi15:02:143:37:1310:2111:45
11:45
+0:29
35K
21.75 mi15:10:303:45:2910:228:16
11:03
-0:42
23M
23.00 mi15:25:284:00:2710:2714:58
11:57
+0:54
24M
24.00 mi15:36:434:11:4210:2911:15
11:15
-0:42
40K
24.85 mi15:47:484:22:4710:3411:05
12:58
+1:43
25.2M
25.20 mi15:51:524:26:5110:354:04
11:48
-1:10
Finish
26.22 mi16:02:314:37:3010:3510:39
10:27
-1:21

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

9:30 /mi

Average Pace

10:35 /mi

Slowest Pace

12:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:37

51% of race

Time at Steady Pace

1:35:01

34% of race

Time at Slower Pace

41:52

15% of race

Average Pace: 10:35 /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 mi11:54:3329:329:3029:32
9:30
#24255
10K
6.21 mi12:24:5359:529:3830:20
9:46
#24552
15K
9.32 mi12:56:081:31:079:4731:15
10:04
#24764
20K
12.43 mi13:28:032:03:029:5431:55
10:16
#24757
Half
13.11 mi13:34:592:09:589:556:56
10:10
#24786
25K
15.53 mi14:00:462:35:4510:0225:47
10:38
#24772
30K
18.64 mi14:35:113:10:1010:1234:25
11:05
#24658
20M
20.00 mi14:50:293:25:2810:1615:18
11:16
#24629
21M
21.00 mi15:02:143:37:1310:2111:45
11:45
#24556
35K
21.75 mi15:10:303:45:2910:228:16
11:03
#24564
23M
23.00 mi15:25:284:00:2710:2714:58
11:57
#24609
24M
24.00 mi15:36:434:11:4210:2911:15
11:15
#24594
40K
24.85 mi15:47:484:22:4710:3411:05
12:58
#24688
25.2M
25.20 mi15:51:524:26:5110:354:04
11:48
#24666
Finish
26.22 mi16:02:314:37:3010:3510:39
10:27
#24654
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi242559829982925107(Top 88%)10279(Top 84%)10279(Top 188%)
10K6.21 mi3.10 mi24552-2979978-1499978-14924751(Top 87%)10095(Top 83%)10095(Top 185%)
15K9.32 mi3.11 mi24764-21210095-11710095-11725107(Top 88%)10279(Top 84%)10279(Top 188%)
20K12.43 mi3.11 mi24757+710098-310098-324777(Top 87%)10142(Top 83%)10142(Top 185%)
Half13.11 mi0.68 mi24786-2910114-1610114-1625142(Top 89%)10341(Top 85%)10341(Top 189%)
25K15.53 mi2.42 mi24772+1410132-1810132-1824601(Top 87%)10073(Top 82%)10073(Top 184%)
30K18.64 mi3.11 mi24658+11410093+3910093+3924133(Top 85%)9940(Top 81%)9940(Top 182%)
20M20.00 mi1.36 mi24629+2910084+910084+924102(Top 85%)10008(Top 82%)10008(Top 183%)
21M21.00 mi1.00 mi24556+7310066+1810066+1823106(Top 81%)9546(Top 78%)9546(Top 175%)
35K21.75 mi0.75 mi24564-810076-1010076-1024277(Top 85%)10205(Top 83%)10205(Top 187%)
23M23.00 mi1.25 mi24609-4510120-4410120-4425037(Top 88%)10623(Top 87%)10623(Top 194%)
24M24.00 mi1.00 mi24594+1510127-710127-724460(Top 86%)10356(Top 85%)10356(Top 189%)
40K24.85 mi0.85 mi24688-9410190-6310190-6326250(Top 92%)11267(Top 92%)11267(Top 206%)
25.2M25.20 mi0.35 mi24666+2210181+910181+922711(Top 80%)9528(Top 78%)9528(Top 174%)
Finish26.22 mi1.02 mi24654+12101811018124152(Top 85%)10245(Top 84%)10245(Top 187%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

25107

Females

10279

F18-39

10279

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24751

Females

10095

F18-39

10095

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

25107

Females

10279

F18-39

10279

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24777

Females

10142

F18-39

10142

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

25142

Females

10341

F18-39

10341

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

24601

Females

10073

F18-39

10073

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

24133

Females

9940

F18-39

9940

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24102

Females

10008

F18-39

10008

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

23106

Females

9546

F18-39

9546

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24277

Females

10205

F18-39

10205

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

25037

Females

10623

F18-39

10623

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24460

Females

10356

F18-39

10356

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26250

Females

11267

F18-39

11267

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22711

Females

9528

F18-39

9528

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24152

Females

10245

F18-39

10245

Passing Analysis

Category:
Athletes Passed
1005
Passed By
1404
Net Change
-399
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24255
5K → 10K114411-297#24255#24552
10K → 15K78290-212#24552#24764
15K → 20K142135+7#24764#24757
20K → Half1241-29#24757#24786
Half → 25K11096+14#24786#24772
25K → 30K19581+114#24772#24658
30K → 20M6536+29#24658#24629
20M → 21M9421+73#24629#24556
21M → 35K3139-8#24556#24564
35K → 23M4186-45#24564#24609
23M → 24M5338+15#24609#24594
24M → 40K9103-94#24594#24688
40K → 25.2M242+22#24688#24666
25.2M → Finish3725+12#24666#24654
TOTALS10051404-399
📊

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