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BOSTON MARATHON 2025

Lyla Senn

Bib: 17680•F

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0:00
/ mi
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:42
Rank: #10433
Start → 5K
22:42 | 7:18/mi
10K· 6.21 mi
45:22
Rank: #10346 (+87)
5K → 10K
22:40 | 7:18/mi
15K· 9.32 mi
1:08:15
Rank: #10411 (-65)
10K → 15K
22:53 | 7:22/mi
20K· 12.43 mi
1:30:59
Rank: #10066 (+345)
15K → 20K
22:44 | 7:19/mi
Half· 13.11 mi
1:35:52
Rank: #9988 (+78)
20K → Half
4:53 | 7:09/mi
25K· 15.53 mi
1:53:32
Rank: #9648 (+340)
Half → 25K
17:40 | 7:17/mi
30K· 18.64 mi
2:16:38
Rank: #9103 (+545)
25K → 30K
23:06 | 7:26/mi
20M
2:26:54
Rank: #8914 (+189)
30K → 20M
10:16 | 7:33/mi
21M
2:34:48
Rank: #8735 (+179)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:40:11
Rank: #8616 (+119)
21M → 35K
5:23 | 7:12/mi
23M
2:49:41
Rank: #8442 (+174)
35K → 23M
9:30 | 7:35/mi
24M
2:57:03
Rank: #8312 (+130)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
3:03:41
Rank: #8282 (+30)
24M → 40K
6:38 | 7:45/mi
25.2M
3:06:34
Rank: #8261 (+21)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:14:09
Rank: #8276 (-15)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:52
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:38:17
Pace7:30 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:0422:427:1822:42
7:18
-
10K
6.21 mi11:35:4445:227:1822:40
7:18
0:00
15K
9.32 mi11:58:371:08:157:1922:53
7:22
+0:04
20K
12.43 mi12:21:211:30:597:1922:44
7:19
-0:03
Half
13.11 mi12:26:141:35:527:194:53
7:09
-0:10
25K
15.53 mi12:43:541:53:327:1917:40
7:17
+0:08
30K
18.64 mi13:07:002:16:387:2023:06
7:26
+0:09
20M
20.00 mi13:17:162:26:547:2110:16
7:33
+0:07
21M
21.00 mi13:25:102:34:487:227:54
7:54
+0:21
35K
21.75 mi13:30:332:40:117:225:23
7:12
-0:42
23M
23.00 mi13:40:032:49:417:239:30
7:35
+0:23
24M
24.00 mi13:47:252:57:037:237:22
7:22
-0:13
40K
24.85 mi13:54:033:03:417:236:38
7:45
+0:23
25.2M
25.20 mi13:56:563:06:347:242:53
8:22
+0:37
Finish
26.22 mi14:04:313:14:097:257:35
7:26
-0:56

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

7:09 /mi

Average Pace

7:25 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:22

94% of race

Time at Steady Pace

10:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi11:13:0422:427:1822:42
7:18
#10433
10K
6.21 mi11:35:4445:227:1822:40
7:18
#10346
15K
9.32 mi11:58:371:08:157:1922:53
7:22
#10411
20K
12.43 mi12:21:211:30:597:1922:44
7:19
#10066
Half
13.11 mi12:26:141:35:527:194:53
7:09
#9988
25K
15.53 mi12:43:541:53:327:1917:40
7:17
#9648
30K
18.64 mi13:07:002:16:387:2023:06
7:26
#9103
20M
20.00 mi13:17:162:26:547:2110:16
7:33
#8914
21M
21.00 mi13:25:102:34:487:227:54
7:54
#8735
35K
21.75 mi13:30:332:40:117:225:23
7:12
#8616
23M
23.00 mi13:40:032:49:417:239:30
7:35
#8442
24M
24.00 mi13:47:252:57:037:237:22
7:22
#8312
40K
24.85 mi13:54:033:03:417:236:38
7:45
#8282
25.2M
25.20 mi13:56:563:06:347:242:53
8:22
#8261
Finish
26.22 mi14:04:313:14:097:257:35
7:26
#8276
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104332004200410547(Top 37%)2137(Top 17%)2137(Top 39%)
10K6.21 mi3.10 mi10346+871976+281976+2810323(Top 36%)1968(Top 16%)1968(Top 36%)
15K9.32 mi3.11 mi10411-652034-582034-5810547(Top 37%)2137(Top 17%)2137(Top 39%)
20K12.43 mi3.11 mi10066+3451897+1371897+1379200(Top 32%)1609(Top 13%)1609(Top 29%)
Half13.11 mi0.68 mi9988+781867+301867+308791(Top 31%)1403(Top 11%)1403(Top 26%)
25K15.53 mi2.42 mi9648+3401742+1251742+1258285(Top 29%)1334(Top 11%)1334(Top 24%)
30K18.64 mi3.11 mi9103+5451552+1901552+1907283(Top 26%)1125(Top 9%)1125(Top 21%)
20M20.00 mi1.36 mi8914+1891500+521500+527413(Top 26%)1308(Top 11%)1308(Top 24%)
21M21.00 mi1.00 mi8735+1791461+391461+396816(Top 24%)1231(Top 10%)1231(Top 23%)
35K21.75 mi0.75 mi8616+1191431+301431+306629(Top 23%)1153(Top 9%)1153(Top 21%)
23M23.00 mi1.25 mi8442+1741411+201411+207188(Top 25%)1479(Top 12%)1479(Top 27%)
24M24.00 mi1.00 mi8312+1301392+191392+196859(Top 24%)1403(Top 11%)1403(Top 26%)
40K24.85 mi0.85 mi8282+301413-211413-218498(Top 30%)2213(Top 18%)2213(Top 40%)
25.2M25.20 mi0.35 mi8261+211420-71420-77999(Top 28%)2057(Top 17%)2057(Top 38%)
Finish26.22 mi1.02 mi8276-151464-441464-448789(Top 31%)2427(Top 20%)2427(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10547

Females

2137

F18-39

2137

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10323

Females

1968

F18-39

1968

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10547

Females

2137

F18-39

2137

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9200

Females

1609

F18-39

1609

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8791

Females

1403

F18-39

1403

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8285

Females

1334

F18-39

1334

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7283

Females

1125

F18-39

1125

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7413

Females

1308

F18-39

1308

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6816

Females

1231

F18-39

1231

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6629

Females

1153

F18-39

1153

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7188

Females

1479

F18-39

1479

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6859

Females

1403

F18-39

1403

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8498

Females

2213

F18-39

2213

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7999

Females

2057

F18-39

2057

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8789

Females

2427

F18-39

2427

Passing Analysis

Category:
Athletes Passed
2892*
Passed By
734
Net Change
+2157
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10433
5K → 10K298211+87#10433#10346
10K → 15K143208-65#10346#10411
15K → 20K38236+345#10411#10066
20K → Half86*8+78#10066#9988
Half → 25K35212+340#9988#9648
25K → 30K55611+545#9648#9103
30K → 20M21122+189#9103#8914
20M → 21M19920+179#8914#8735
21M → 35K1289+119#8735#8616
35K → 23M20329+174#8616#8442
23M → 24M14919+130#8442#8312
24M → 40K8858+30#8312#8282
40K → 25.2M3211+21#8282#8261
25.2M → Finish6580-15#8261#8276
TOTALS2892*734+2157

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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