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BOSTON MARATHON 2025

Julia Mills

Bib: 30512•F

IL

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:17/mi
31:58
↑ 97↓ 3451.5%
10K· 6.21 mi
9:36/mi
1:01:46
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:30:05
↑ 67↓ 78
20K· 12.43 mi
9:13/mi
1:58:44
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
2:04:48
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:27:03
↑ 66↓ 880.2%
30K· 18.64 mi
9:46/mi
2:57:23
↑ 181↓ 1480.2%
20M
9:44/mi
3:10:37
↑ 64↓ 500.2%
21M
10:03/mi
3:20:40
↑ 106↓ 241.6%
35K· 21.75 mi
9:03/mi
3:27:26
↑ 17↓ 861.7%
23M
8:54/mi
3:38:35
↑ 23↓ 630.6%
24M
8:47/mi
3:47:22
↓ 821.3%
40K· 24.85 mi
10:12/mi
3:56:05
↓ 200.3%
25.2M
11:21/mi
4:00:00
↑ 13↓ 160.2%
Finish· 26.22 mi
9:49/mi
4:10:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:04:48
Pace9:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:05:12
Pace9:33 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5531:5810:1731:58
10:17
-
10K
6.21 mi12:22:431:01:469:5629:48
9:36
-0:41
15K
9.32 mi12:51:021:30:059:4028:19
9:07
-0:29
20K
12.43 mi13:19:411:58:449:3328:39
9:13
+0:06
Half
13.11 mi13:25:452:04:489:316:04
8:54
-0:19
25K
15.53 mi13:48:002:27:039:2822:15
9:11
+0:17
30K
18.64 mi14:18:202:57:239:3130:20
9:46
+0:35
20M
20.00 mi14:31:343:10:379:3213:14
9:44
-0:02
21M
21.00 mi14:41:373:20:409:3310:03
10:03
+0:19
35K
21.75 mi14:48:233:27:269:326:46
9:03
-1:00
23M
23.00 mi14:59:323:38:359:3011:09
8:54
-0:09
24M
24.00 mi15:08:193:47:229:288:47
8:47
-0:07
40K
24.85 mi15:17:023:56:059:308:43
10:12
+1:25
25.2M
25.20 mi15:20:574:00:009:313:55
11:21
+1:09
Finish
26.22 mi15:30:574:10:009:3310:00
9:49
-1:32

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

8:47 /mi

Average Pace

9:33 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:59

45% of race

Time at Steady Pace

1:23:22

33% of race

Time at Slower Pace

54:39

22% of race

Average Pace: 9:32 /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 mi11:52:5531:5810:1731:58
10:17
#26281
10K
6.21 mi12:22:431:01:469:5629:48
9:36
#25286
15K
9.32 mi12:51:021:30:059:4028:19
9:07
#24482
20K
12.43 mi13:19:411:58:449:3328:39
9:13
#23885
Half
13.11 mi13:25:452:04:489:316:04
8:54
#23788
25K
15.53 mi13:48:002:27:039:2822:15
9:11
#23310
30K
18.64 mi14:18:202:57:239:3130:20
9:46
#22842
20M
20.00 mi14:31:343:10:379:3213:14
9:44
#22658
21M
21.00 mi14:41:373:20:409:3310:03
10:03
#22424
35K
21.75 mi14:48:233:27:269:326:46
9:03
#22301
23M
23.00 mi14:59:323:38:359:3011:09
8:54
#21964
24M
24.00 mi15:08:193:47:229:288:47
8:47
#21768
40K
24.85 mi15:17:023:56:059:308:43
10:12
#21742
25.2M
25.20 mi15:20:574:00:009:313:55
11:21
#21733
Finish
26.22 mi15:30:574:10:009:3310:00
9:49
#21740
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26281109081090822527(Top 79%)8848(Top 72%)8848(Top 162%)
10K6.21 mi3.10 mi25286+99510387+52110387+52124339(Top 86%)9879(Top 81%)9879(Top 181%)
15K9.32 mi3.11 mi24482+8049949+4389949+43822527(Top 79%)8848(Top 72%)8848(Top 162%)
20K12.43 mi3.11 mi23885+5979627+3229627+32221974(Top 77%)8567(Top 70%)8567(Top 157%)
Half13.11 mi0.68 mi23788+979570+579570+5721408(Top 75%)8269(Top 68%)8269(Top 151%)
25K15.53 mi2.42 mi23310+4789302+2689302+26820687(Top 73%)7921(Top 65%)7921(Top 145%)
30K18.64 mi3.11 mi22842+4689092+2109092+21020878(Top 74%)8162(Top 67%)8162(Top 149%)
20M20.00 mi1.36 mi22658+1849017+759017+7520089(Top 71%)7846(Top 64%)7846(Top 143%)
21M21.00 mi1.00 mi22424+2348902+1158902+11518534(Top 65%)7086(Top 58%)7086(Top 130%)
35K21.75 mi0.75 mi22301+1238851+518851+5118518(Top 65%)7218(Top 59%)7218(Top 132%)
23M23.00 mi1.25 mi21964+3378694+1578694+15715751(Top 55%)5760(Top 47%)5760(Top 105%)
24M24.00 mi1.00 mi21768+1968613+818613+8116276(Top 57%)6102(Top 50%)6102(Top 112%)
40K24.85 mi0.85 mi21742+268620-78620-721077(Top 74%)8705(Top 71%)8705(Top 159%)
25.2M25.20 mi0.35 mi21733+98623-38623-321700(Top 76%)9006(Top 74%)9006(Top 165%)
Finish26.22 mi1.02 mi21740-78639-168639-1622335(Top 79%)9340(Top 76%)9340(Top 171%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22527

Females

8848

F18-39

8848

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24339

Females

9879

F18-39

9879

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22527

Females

8848

F18-39

8848

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21974

Females

8567

F18-39

8567

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21408

Females

8269

F18-39

8269

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20687

Females

7921

F18-39

7921

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20878

Females

8162

F18-39

8162

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20089

Females

7846

F18-39

7846

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18534

Females

7086

F18-39

7086

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18518

Females

7218

F18-39

7218

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15751

Females

5760

F18-39

5760

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16276

Females

6102

F18-39

6102

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21077

Females

8705

F18-39

8705

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21700

Females

9006

F18-39

9006

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22335

Females

9340

F18-39

9340

Passing Analysis

Category:
Athletes Passed
4676
Passed By
135
Net Change
+4541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26281
5K → 10K9983+995#26281#25286
10K → 15K8051+804#25286#24482
15K → 20K5981+597#24482#23885
20K → Half970+97#23885#23788
Half → 25K4802+478#23788#23310
25K → 30K47911+468#23310#22842
30K → 20M1884+184#22842#22658
20M → 21M2373+234#22658#22424
21M → 35K1285+123#22424#22301
35K → 23M3370+337#22301#21964
23M → 24M1960+196#21964#21768
24M → 40K6236+26#21768#21742
40K → 25.2M2516+9#21742#21733
25.2M → Finish4653-7#21733#21740
TOTALS4676135+4541
📊

Passing Visuals

Category:
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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