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BOSTON MARATHON 2025

Kailey Frei

Bib: 17032•F

UT

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 48%
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
24:41
Rank: #16169
Start → 5K
24:41 | 7:57/mi
10K· 6.21 mi
49:29
Rank: #16216 (-47)
5K → 10K
24:48 | 7:59/mi
15K· 9.32 mi
1:14:58
Rank: #16664 (-448)
10K → 15K
25:29 | 8:12/mi
20K· 12.43 mi
1:41:38
Rank: #17200 (-536)
15K → 20K
26:40 | 8:35/mi
Half· 13.11 mi
1:47:11
Rank: #17174 (+26)
20K → Half
5:33 | 8:08/mi
25K· 15.53 mi
2:08:02
Rank: #17224 (-50)
Half → 25K
20:51 | 8:36/mi
30K· 18.64 mi
2:35:18
Rank: #17027 (+197)
25K → 30K
27:16 | 8:47/mi
20M
2:47:20
Rank: #16933 (+94)
30K → 20M
12:02 | 8:51/mi
21M
2:57:03
Rank: #16895 (+38)
20M → 21M
9:43 | 9:43/mi
35K· 21.75 mi
3:03:28
Rank: #16845 (+50)
21M → 35K
6:25 | 8:35/mi
23M
3:14:44
Rank: #16797 (+48)
35K → 23M
11:16 | 9:00/mi
24M
3:23:30
Rank: #16750 (+47)
23M → 24M
8:46 | 8:46/mi
40K· 24.85 mi
3:31:00
Rank: #16669 (+81)
24M → 40K
7:30 | 8:46/mi
25.2M
3:34:49
Rank: #16770 (-101)
40K → 25.2M
3:49 | 11:04/mi
Finish· 26.22 mi
3:43:40
Rank: #16793 (-23)
25.2M → Finish
8:51 | 8:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:11
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:56:29
Pace8:53 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3124:417:5724:41
7:57
-
10K
6.21 mi11:40:1949:297:5824:48
7:59
+0:02
15K
9.32 mi12:05:481:14:588:0325:29
8:12
+0:13
20K
12.43 mi12:32:281:41:388:1126:40
8:35
+0:23
Half
13.11 mi12:38:011:47:118:115:33
8:08
-0:27
25K
15.53 mi12:58:522:08:028:1520:51
8:36
+0:28
30K
18.64 mi13:26:082:35:188:2027:16
8:47
+0:11
20M
20.00 mi13:38:102:47:208:2212:02
8:51
+0:04
21M
21.00 mi13:47:532:57:038:269:43
9:43
+0:52
35K
21.75 mi13:54:183:03:288:266:25
8:35
-1:08
23M
23.00 mi14:05:343:14:448:2811:16
9:00
+0:25
24M
24.00 mi14:14:203:23:308:298:46
8:46
-0:14
40K
24.85 mi14:21:503:31:008:297:30
8:46
0:00
25.2M
25.20 mi14:25:393:34:498:313:49
11:04
+2:18
Finish
26.22 mi14:34:303:43:408:328:51
8:41
-2:23

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

7:57 /mi

Average Pace

8:32 /mi

Slowest Pace

11:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:31

36% of race

Time at Steady Pace

2:09:37

58% of race

Time at Slower Pace

13:32

6% of race

Average Pace: 8:32 /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 mi11:15:3124:417:5724:41
7:57
#16169
10K
6.21 mi11:40:1949:297:5824:48
7:59
#16216
15K
9.32 mi12:05:481:14:588:0325:29
8:12
#16664
20K
12.43 mi12:32:281:41:388:1126:40
8:35
#17200
Half
13.11 mi12:38:011:47:118:115:33
8:08
#17174
25K
15.53 mi12:58:522:08:028:1520:51
8:36
#17224
30K
18.64 mi13:26:082:35:188:2027:16
8:47
#17027
20M
20.00 mi13:38:102:47:208:2212:02
8:51
#16933
21M
21.00 mi13:47:532:57:038:269:43
9:43
#16895
35K
21.75 mi13:54:183:03:288:266:25
8:35
#16845
23M
23.00 mi14:05:343:14:448:2811:16
9:00
#16797
24M
24.00 mi14:14:203:23:308:298:46
8:46
#16750
40K
24.85 mi14:21:503:31:008:297:30
8:46
#16669
25.2M
25.20 mi14:25:393:34:498:313:49
11:04
#16770
Finish
26.22 mi14:34:303:43:408:328:51
8:41
#16793
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi161695247524717412(Top 61%)5961(Top 49%)5961(Top 109%)
10K6.21 mi3.10 mi16216-475276-295276-2916358(Top 58%)5343(Top 44%)5343(Top 98%)
15K9.32 mi3.11 mi16664-4485524-2485524-24817412(Top 61%)5961(Top 49%)5961(Top 109%)
20K12.43 mi3.11 mi17200-5365861-3375861-33718751(Top 66%)6771(Top 55%)6771(Top 124%)
Half13.11 mi0.68 mi17174+265847+145847+1416917(Top 60%)5720(Top 47%)5720(Top 105%)
25K15.53 mi2.42 mi17224-505896-495896-4917807(Top 63%)6313(Top 52%)6313(Top 115%)
30K18.64 mi3.11 mi17027+1975835+615835+6116471(Top 58%)5726(Top 47%)5726(Top 105%)
20M20.00 mi1.36 mi16933+945798+375798+3715985(Top 56%)5585(Top 46%)5585(Top 102%)
21M21.00 mi1.00 mi16895+385807-95807-917128(Top 60%)6326(Top 52%)6326(Top 116%)
35K21.75 mi0.75 mi16845+505799+85799+815973(Top 56%)5764(Top 47%)5764(Top 105%)
23M23.00 mi1.25 mi16797+485810-115810-1116265(Top 57%)6039(Top 49%)6039(Top 110%)
24M24.00 mi1.00 mi16750+475813-35813-316143(Top 57%)6012(Top 49%)6012(Top 110%)
40K24.85 mi0.85 mi16669+815795+185795+1815062(Top 53%)5557(Top 45%)5557(Top 102%)
25.2M25.20 mi0.35 mi16770-1015870-755870-7520862(Top 73%)8576(Top 70%)8576(Top 157%)
Finish26.22 mi1.02 mi16793-235900-305900-3017410(Top 61%)6766(Top 55%)6766(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17412

Females

5961

F18-39

5961

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16358

Females

5343

F18-39

5343

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17412

Females

5961

F18-39

5961

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18751

Females

6771

F18-39

6771

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16917

Females

5720

F18-39

5720

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

17807

Females

6313

F18-39

6313

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16471

Females

5726

F18-39

5726

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15985

Females

5585

F18-39

5585

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

17128

Females

6326

F18-39

6326

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

15973

Females

5764

F18-39

5764

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16265

Females

6039

F18-39

6039

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

16143

Females

6012

F18-39

6012

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15062

Females

5557

F18-39

5557

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20862

Females

8576

F18-39

8576

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17410

Females

6766

F18-39

6766

Passing Analysis

Category:
Athletes Passed
1718
Passed By
2342
Net Change
-624
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16169
5K → 10K272319-47#16169#16216
10K → 15K95543-448#16216#16664
15K → 20K72608-536#16664#17200
20K → Half4317+26#17200#17174
Half → 25K149199-50#17174#17224
25K → 30K311114+197#17224#17027
30K → 20M14349+94#17027#16933
20M → 21M13496+38#16933#16895
21M → 35K7929+50#16895#16845
35K → 23M12981+48#16845#16797
23M → 24M10154+47#16797#16750
24M → 40K11736+81#16750#16669
40K → 25.2M9110-101#16669#16770
25.2M → Finish6487-23#16770#16793
TOTALS17182342-624
📊

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