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BOSTON MARATHON 2025

Kristin Daley

Bib: 17295•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 26%
Masters (Masters Women)
#0 / 6759
Top 12%
Division (F40-44)
#0 / 1718
Top 25%
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
7:40/mi
23:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:37/mi
47:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:37/mi
1:11:08
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:34:48
↑ 106↓ 860.1%
Half· 13.11 mi
7:26/mi
1:39:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
1:58:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:23:16
↑ 181↓ 1480.2%
20M
8:01/mi
2:34:10
↑ 64↓ 500.2%
21M
8:19/mi
2:42:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:48:43
↑ 17↓ 861.7%
23M
8:07/mi
2:58:53
↑ 23↓ 630.6%
24M
8:13/mi
3:07:06
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:14:06
↓ 200.3%
25.2M
8:11/mi
3:16:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:11/mi
3:25:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:52
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:45:23
Pace8:02 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4923:487:4023:48
7:40
-
10K
6.21 mi11:45:2947:287:3823:40
7:37
-0:03
15K
9.32 mi12:09:091:11:087:3823:40
7:37
0:00
20K
12.43 mi12:32:491:34:487:3823:40
7:37
0:00
Half
13.11 mi12:37:531:39:527:375:04
7:26
-0:11
25K
15.53 mi12:56:411:58:407:3818:48
7:45
+0:19
30K
18.64 mi13:21:172:23:167:4124:36
7:55
+0:10
20M
20.00 mi13:32:112:34:107:4210:54
8:01
+0:06
21M
21.00 mi13:40:302:42:297:448:19
8:19
+0:18
35K
21.75 mi13:46:442:48:437:456:14
8:19
0:00
23M
23.00 mi13:56:542:58:537:4710:10
8:07
-0:12
24M
24.00 mi14:05:073:07:067:488:13
8:13
+0:06
40K
24.85 mi14:12:073:14:067:497:00
8:11
-0:02
25.2M
25.20 mi14:14:563:16:557:492:49
8:11
0:00
Finish
26.22 mi14:23:163:25:157:508:20
8:11
0:00

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

7:26 /mi

Average Pace

7:50 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:20

80% of race

Time at Steady Pace

40:55

20% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:21:4923:487:4023:48
7:40
#13613
10K
6.21 mi11:45:2947:287:3823:40
7:37
#13383
15K
9.32 mi12:09:091:11:087:3823:40
7:37
#13150
20K
12.43 mi12:32:491:34:487:3823:40
7:37
#12735
Half
13.11 mi12:37:531:39:527:375:04
7:26
#12650
25K
15.53 mi12:56:411:58:407:3818:48
7:45
#12516
30K
18.64 mi13:21:172:23:167:4124:36
7:55
#12122
20M
20.00 mi13:32:112:34:107:4210:54
8:01
#11987
21M
21.00 mi13:40:302:42:297:448:19
8:19
#11793
35K
21.75 mi13:46:442:48:437:456:14
8:19
#11871
23M
23.00 mi13:56:542:58:537:4710:10
8:07
#11789
24M
24.00 mi14:05:073:07:067:488:13
8:13
#11817
40K
24.85 mi14:12:073:14:067:497:00
8:11
#11764
25.2M
25.20 mi14:14:563:16:557:492:49
8:11
#11664
Finish
26.22 mi14:23:163:25:157:508:20
8:11
#11765
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi136133661366112757(Top 45%)3310(Top 27%)3310(Top 193%)
10K6.21 mi3.10 mi13383+2303578+833578+8313198(Top 46%)3492(Top 29%)3492(Top 203%)
15K9.32 mi3.11 mi13150+2333481+973481+9712757(Top 45%)3310(Top 27%)3310(Top 193%)
20K12.43 mi3.11 mi12735+4153293+1883293+18811737(Top 41%)2858(Top 23%)2858(Top 166%)
Half13.11 mi0.68 mi12650+853242+513242+5111190(Top 39%)2531(Top 21%)2531(Top 147%)
25K15.53 mi2.42 mi12516+1343199+433199+4311988(Top 42%)3110(Top 25%)3110(Top 181%)
30K18.64 mi3.11 mi12122+3943061+1383061+13810794(Top 38%)2686(Top 22%)2686(Top 156%)
20M20.00 mi1.36 mi11987+1353030+313030+3110606(Top 37%)2744(Top 22%)2744(Top 160%)
21M21.00 mi1.00 mi11793+1942964+662964+669381(Top 33%)2340(Top 19%)2340(Top 136%)
35K21.75 mi0.75 mi11871-783027-633027-6314397(Top 51%)4928(Top 40%)4928(Top 287%)
23M23.00 mi1.25 mi11789+823024+33024+310888(Top 38%)3175(Top 26%)3175(Top 185%)
24M24.00 mi1.00 mi11817-283079-553079-5512698(Top 45%)4153(Top 34%)4153(Top 242%)
40K24.85 mi0.85 mi11764+533080-13080-111423(Top 40%)3632(Top 30%)3632(Top 211%)
25.2M25.20 mi0.35 mi11664+1003045+353045+357010(Top 25%)1682(Top 14%)1682(Top 98%)
Finish26.22 mi1.02 mi11765-1013139-943139-9414173(Top 50%)5049(Top 41%)5049(Top 294%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

12757

Females

3310

F40-44

3310

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

13198

Females

3492

F40-44

3492

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

12757

Females

3310

F40-44

3310

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11737

Females

2858

F40-44

2858

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

11190

Females

2531

F40-44

2531

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11988

Females

3110

F40-44

3110

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10794

Females

2686

F40-44

2686

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10606

Females

2744

F40-44

2744

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9381

Females

2340

F40-44

2340

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

14397

Females

4928

F40-44

4928

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10888

Females

3175

F40-44

3175

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12698

Females

4153

F40-44

4153

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11423

Females

3632

F40-44

3632

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7010

Females

1682

F40-44

1682

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14173

Females

5049

F40-44

5049

Passing Analysis

Category:
Athletes Passed
2852
Passed By
1004
Net Change
+1848
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13613
5K → 10K406176+230#13613#13383
10K → 15K32794+233#13383#13150
15K → 20K45338+415#13150#12735
20K → Half883+85#12735#12650
Half → 25K21682+134#12650#12516
25K → 30K45763+394#12516#12122
30K → 20M17540+135#12122#11987
20M → 21M21622+194#11987#11793
21M → 35K34112-78#11793#11871
35K → 23M15068+82#11871#11789
23M → 24M72100-28#11789#11817
24M → 40K9542+53#11817#11764
40K → 25.2M1033+100#11764#11664
25.2M → Finish60161-101#11664#11765
TOTALS28521004+1848
📊

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