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BOSTON MARATHON 2025

Ilaria Stewart

Bib: 15860•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 38%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:20
Rank: #12362
Start → 5K
7:31/mi
23:20 split
10K· 6.21 mi
46:47
Rank: #12395 (-33)
5K → 10K
7:33/mi
23:27 split
15K· 9.32 mi
1:10:19
Rank: #12378 (+17)
10K → 15K
7:34/mi
23:32 split
20K· 12.43 mi
1:34:12
Rank: #12317 (+61)
15K → 20K
7:41/mi
23:53 split
Half· 13.11 mi
1:39:21
Rank: #12319 (-2)
20K → Half
7:33/mi
5:09 split
25K· 15.53 mi
1:58:01
Rank: #12158 (+161)
Half → 25K
7:42/mi
18:40 split
30K· 18.64 mi
2:22:33
Rank: #11792 (+366)
25K → 30K
7:54/mi
24:32 split
20M
2:33:14
Rank: #11564 (+228)
30K → 20M
7:52/mi
10:41 split
21M
2:41:36
Rank: #11427 (+137)
20M → 21M
8:22/mi
8:22 split
35K· 21.75 mi
2:47:14
Rank: #11318 (+109)
21M → 35K
7:32/mi
5:38 split
23M
2:57:13
Rank: #11180 (+138)
35K → 23M
7:58/mi
9:59 split
24M
3:04:52
Rank: #11022 (+158)
23M → 24M
7:39/mi
7:39 split
40K· 24.85 mi
3:11:44
Rank: #10974 (+48)
24M → 40K
8:02/mi
6:52 split
25.2M
3:14:45
Rank: #10944 (+30)
40K → 25.2M
8:45/mi
3:01 split
Finish· 26.22 mi
3:22:24
Rank: #10865 (+79)
25.2M → Finish
7:30/mi
7:39 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:43:03
Pace7:52 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3323:207:3123:20
7:31
-
10K
6.21 mi11:19:0046:477:3223:27
7:33
+0:02
15K
9.32 mi11:42:321:10:197:3323:32
7:34
+0:01
20K
12.43 mi12:06:251:34:127:3523:53
7:41
+0:07
Half
13.11 mi12:11:341:39:217:355:09
7:33
-0:08
25K
15.53 mi12:30:141:58:017:3618:40
7:42
+0:09
30K
18.64 mi12:54:462:22:337:3924:32
7:54
+0:12
20M
20.00 mi13:05:272:33:147:4010:41
7:52
-0:02
21M
21.00 mi13:13:492:41:367:428:22
8:22
+0:30
35K
21.75 mi13:19:272:47:147:415:38
7:32
-0:50
23M
23.00 mi13:29:262:57:137:429:59
7:58
+0:26
24M
24.00 mi13:37:053:04:527:427:39
7:39
-0:19
40K
24.85 mi13:43:573:11:447:436:52
8:02
+0:23
25.2M
25.20 mi13:46:583:14:457:443:01
8:45
+0:43
Finish
26.22 mi13:54:373:22:247:447:39
7:30
-1:15

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

7:30 /mi

Average Pace

7:44 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:01

94% of race

Time at Steady Pace

11:23

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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 mi10:55:3323:207:3123:20
7:31
#12362
10K
6.21 mi11:19:0046:477:3223:27
7:33
#12395
15K
9.32 mi11:42:321:10:197:3323:32
7:34
#12378
20K
12.43 mi12:06:251:34:127:3523:53
7:41
#12317
Half
13.11 mi12:11:341:39:217:355:09
7:33
#12319
25K
15.53 mi12:30:141:58:017:3618:40
7:42
#12158
30K
18.64 mi12:54:462:22:337:3924:32
7:54
#11792
20M
20.00 mi13:05:272:33:147:4010:41
7:52
#11564
21M
21.00 mi13:13:492:41:367:428:22
8:22
#11427
35K
21.75 mi13:19:272:47:147:415:38
7:32
#11318
23M
23.00 mi13:29:262:57:137:429:59
7:58
#11180
24M
24.00 mi13:37:053:04:527:427:39
7:39
#11022
40K
24.85 mi13:43:573:11:447:436:52
8:02
#10974
25.2M
25.20 mi13:46:583:14:457:443:01
8:45
#10944
Finish
26.22 mi13:54:373:22:247:447:39
7:30
#10865
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi123622996299612385(Top 44%)3104(Top 25%)3104(Top 57%)
10K6.21 mi3.10 mi12395-333010-143010-1412552(Top 44%)3119(Top 26%)3119(Top 57%)
15K9.32 mi3.11 mi12378+173036-263036-2612385(Top 44%)3104(Top 25%)3104(Top 57%)
20K12.43 mi3.11 mi12317+613039-33039-312297(Top 43%)3164(Top 26%)3164(Top 58%)
Half13.11 mi0.68 mi12319-23049-103049-1012166(Top 43%)3027(Top 25%)3027(Top 55%)
25K15.53 mi2.42 mi12158+1613005+443005+4411541(Top 41%)2870(Top 23%)2870(Top 52%)
30K18.64 mi3.11 mi11792+3662896+1092896+10910615(Top 37%)2604(Top 21%)2604(Top 48%)
20M20.00 mi1.36 mi11564+2282807+892807+899484(Top 33%)2209(Top 18%)2209(Top 40%)
21M21.00 mi1.00 mi11427+1372775+322775+329672(Top 34%)2459(Top 20%)2459(Top 45%)
35K21.75 mi0.75 mi11318+1092745+302745+308892(Top 31%)2086(Top 17%)2086(Top 38%)
23M23.00 mi1.25 mi11180+1382714+312714+319875(Top 35%)2679(Top 22%)2679(Top 49%)
24M24.00 mi1.00 mi11022+1582669+452669+458824(Top 31%)2250(Top 18%)2250(Top 41%)
40K24.85 mi0.85 mi10974+482682-132682-1310444(Top 37%)3144(Top 26%)3144(Top 57%)
25.2M25.20 mi0.35 mi10944+302679+32679+310343(Top 36%)3179(Top 26%)3179(Top 58%)
Finish26.22 mi1.02 mi10865+792669+102669+109266(Top 33%)2653(Top 22%)2653(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12385

Females

3104

F18-39

3104

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12552

Females

3119

F18-39

3119

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12385

Females

3104

F18-39

3104

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12297

Females

3164

F18-39

3164

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12166

Females

3027

F18-39

3027

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11541

Females

2870

F18-39

2870

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10615

Females

2604

F18-39

2604

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9484

Females

2209

F18-39

2209

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9672

Females

2459

F18-39

2459

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8892

Females

2086

F18-39

2086

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9875

Females

2679

F18-39

2679

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8824

Females

2250

F18-39

2250

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10444

Females

3144

F18-39

3144

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10343

Females

3179

F18-39

3179

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

9266

Females

2653

F18-39

2653

Passing Analysis

Category:
Athletes Passed
2479
Passed By
982
Net Change
+1497
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12362
5K → 10K244277-33#12362#12395
10K → 15K191174+17#12395#12378
15K → 20K211150+61#12378#12317
20K → Half2931-2#12317#12319
Half → 25K23271+161#12319#12158
25K → 30K42963+366#12158#11792
30K → 20M24113+228#11792#11564
20M → 21M17538+137#11564#11427
21M → 35K12415+109#11427#11318
35K → 23M17638+138#11318#11180
23M → 24M17517+158#11180#11022
24M → 40K9547+48#11022#10974
40K → 25.2M5121+30#10974#10944
25.2M → Finish10627+79#10944#10865
TOTALS2479982+1497
📊

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