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BOSTON MARATHON 2025

Hailey Migliano

Bib: 17171•F

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
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
7:28/mi
23:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
46:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:55
↑ 67↓ 78
20K· 12.43 mi
8:00/mi
1:33:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:39:07
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:00:02
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:28:33
↑ 181↓ 1480.2%
20M
9:13/mi
2:41:04
↑ 64↓ 500.2%
21M
10:20/mi
2:51:24
↑ 106↓ 241.6%
35K· 21.75 mi
10:28/mi
2:59:14
↑ 17↓ 861.7%
23M
11:05/mi
3:13:07
↑ 23↓ 630.6%
24M
9:46/mi
3:22:53
↓ 821.3%
40K· 24.85 mi
10:42/mi
3:32:02
↓ 200.3%
25.2M
11:45/mi
3:36:05
↑ 13↓ 160.2%
Finish· 26.22 mi
8:45/mi
3:45:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:07
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time2:05:53
Pace9:36 /mi
📊Positive Split: 27.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3523:117:2823:11
7:28
-
10K
6.21 mi11:36:2646:027:2522:51
7:21
-0:07
15K
9.32 mi11:59:191:08:557:2422:53
7:22
+0:01
20K
12.43 mi12:24:101:33:467:3324:51
8:00
+0:38
Half
13.11 mi12:29:311:39:077:345:21
7:50
-0:10
25K
15.53 mi12:50:262:00:027:4420:55
8:38
+0:48
30K
18.64 mi13:18:572:28:337:5828:31
9:11
+0:33
20M
20.00 mi13:31:282:41:048:0312:31
9:13
+0:02
21M
21.00 mi13:41:482:51:248:1010:20
10:20
+1:07
35K
21.75 mi13:49:382:59:148:147:50
10:28
+0:08
23M
23.00 mi14:03:313:13:078:2413:53
11:05
+0:37
24M
24.00 mi14:13:173:22:538:279:46
9:46
-1:19
40K
24.85 mi14:22:263:32:028:329:09
10:42
+0:56
25.2M
25.20 mi14:26:293:36:058:344:03
11:45
+1:03
Finish
26.22 mi14:35:243:45:008:358:55
8:45
-3:00

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

7:21 /mi

Average Pace

8:35 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:07

44% of race

Time at Steady Pace

1:20:38

36% of race

Time at Slower Pace

45:15

20% of race

Average Pace: 8:35 /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 mi11:13:3523:117:2823:11
7:28
#11927
10K
6.21 mi11:36:2646:027:2522:51
7:21
#11320
15K
9.32 mi11:59:191:08:557:2422:53
7:22
#11010
20K
12.43 mi12:24:101:33:467:3324:51
8:00
#12041
Half
13.11 mi12:29:311:39:077:345:21
7:50
#12169
25K
15.53 mi12:50:262:00:027:4420:55
8:38
#13255
30K
18.64 mi13:18:572:28:337:5828:31
9:11
#14442
20M
20.00 mi13:31:282:41:048:0312:31
9:13
#14778
21M
21.00 mi13:41:482:51:248:1010:20
10:20
#15123
35K
21.75 mi13:49:382:59:148:147:50
10:28
#15607
23M
23.00 mi14:03:313:13:078:2413:53
11:05
#16317
24M
24.00 mi14:13:173:22:538:279:46
9:46
#16579
40K
24.85 mi14:22:263:32:028:329:09
10:42
#16962
25.2M
25.20 mi14:26:293:36:058:344:03
11:45
#17112
Finish
26.22 mi14:35:243:45:008:358:55
8:45
#17136
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi119272762276210572(Top 37%)2162(Top 18%)2162(Top 40%)
10K6.21 mi3.10 mi11320+6072458+3042458+30410802(Top 38%)2210(Top 18%)2210(Top 40%)
15K9.32 mi3.11 mi11010+3102326+1322326+13210572(Top 37%)2162(Top 18%)2162(Top 40%)
20K12.43 mi3.11 mi12041-10312895-5692895-56914938(Top 53%)4619(Top 38%)4619(Top 84%)
Half13.11 mi0.68 mi12169-1282973-782973-7814706(Top 52%)4473(Top 37%)4473(Top 82%)
25K15.53 mi2.42 mi13255-10863633-6603633-66017966(Top 63%)6407(Top 52%)6407(Top 117%)
30K18.64 mi3.11 mi14442-11874360-7274360-72718545(Top 65%)6852(Top 56%)6852(Top 125%)
20M20.00 mi1.36 mi14778-3364567-2074567-20717837(Top 63%)6611(Top 54%)6611(Top 121%)
21M21.00 mi1.00 mi15123-3454796-2294796-22919493(Top 69%)7610(Top 62%)7610(Top 139%)
35K21.75 mi0.75 mi15607-4845096-3005096-30023106(Top 81%)9602(Top 79%)9602(Top 176%)
23M23.00 mi1.25 mi16317-7105527-4315527-43123435(Top 83%)9817(Top 80%)9817(Top 180%)
24M24.00 mi1.00 mi16579-2625705-1785705-17820615(Top 73%)8396(Top 69%)8396(Top 154%)
40K24.85 mi0.85 mi16962-3835964-2595964-25922461(Top 79%)9439(Top 77%)9439(Top 173%)
25.2M25.20 mi0.35 mi17112-1506065-1016065-10122673(Top 80%)9491(Top 78%)9491(Top 174%)
Finish26.22 mi1.02 mi17136-246092-276092-2717788(Top 63%)6971(Top 57%)6971(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10572

Females

2162

F18-39

2162

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10802

Females

2210

F18-39

2210

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10572

Females

2162

F18-39

2162

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

14938

Females

4619

F18-39

4619

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14706

Females

4473

F18-39

4473

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17966

Females

6407

F18-39

6407

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18545

Females

6852

F18-39

6852

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17837

Females

6611

F18-39

6611

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

19493

Females

7610

F18-39

7610

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23106

Females

9602

F18-39

9602

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23435

Females

9817

F18-39

9817

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20615

Females

8396

F18-39

8396

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

22461

Females

9439

F18-39

9439

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22673

Females

9491

F18-39

9491

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17788

Females

6971

F18-39

6971

Passing Analysis

Category:
Athletes Passed
1424
Passed By
6633
Net Change
-5209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11927
5K → 10K67164+607#11927#11320
10K → 15K36858+310#11320#11010
15K → 20K331064-1031#11010#12041
20K → Half9137-128#12041#12169
Half → 25K331119-1086#12169#13255
25K → 30K581245-1187#13255#14442
30K → 20M59395-336#14442#14778
20M → 21M41386-345#14778#15123
21M → 35K10494-484#15123#15607
35K → 23M22732-710#15607#16317
23M → 24M28290-262#16317#16579
24M → 40K24407-383#16579#16962
40K → 25.2M10160-150#16962#17112
25.2M → Finish5882-24#17112#17136
TOTALS14246633-5209
📊

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