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BOSTON MARATHON 2025

Katlyn O'Leary

Bib: 15526•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Division (F18-39)
#0 / 5469
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:07
Rank: #11715
Start → 5K
23:07 | 7:26/mi
10K· 6.21 mi
46:27
Rank: #11922 (-207)
5K → 10K
23:20 | 7:31/mi
15K· 9.32 mi
1:09:42
Rank: #11799 (+123)
10K → 15K
23:15 | 7:29/mi
20K· 12.43 mi
1:32:45
Rank: #11344 (+455)
15K → 20K
23:03 | 7:25/mi
Half· 13.11 mi
1:37:46
Rank: #11297 (+47)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:55:55
Rank: #11004 (+293)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:19:55
Rank: #10642 (+362)
25K → 30K
24:00 | 7:43/mi
20M
2:30:30
Rank: #10463 (+179)
30K → 20M
10:35 | 7:47/mi
21M
2:38:39
Rank: #10286 (+177)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:44:24
Rank: #10263 (+23)
21M → 35K
5:45 | 7:41/mi
23M
2:54:18
Rank: #10180 (+83)
35K → 23M
9:54 | 7:54/mi
24M
3:02:39
Rank: #10314 (-134)
23M → 24M
8:21 | 8:21/mi
40K· 24.85 mi
3:09:26
Rank: #10254 (+60)
24M → 40K
6:47 | 7:56/mi
25.2M
3:12:22
Rank: #10206 (+48)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:19:59
Rank: #10138 (+68)
25.2M → Finish
7:37 | 7:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:46
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:42:13
Pace7:48 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1223:077:2623:07
7:26
-
10K
6.21 mi11:18:3246:277:2923:20
7:31
+0:05
15K
9.32 mi11:41:471:09:427:2923:15
7:29
-0:02
20K
12.43 mi12:04:501:32:457:2823:03
7:25
-0:04
Half
13.11 mi12:09:511:37:467:275:01
7:21
-0:04
25K
15.53 mi12:28:001:55:557:2818:09
7:29
+0:08
30K
18.64 mi12:52:002:19:557:3024:00
7:43
+0:14
20M
20.00 mi13:02:352:30:307:3110:35
7:47
+0:04
21M
21.00 mi13:10:442:38:397:338:09
8:09
+0:22
35K
21.75 mi13:16:292:44:247:345:45
7:41
-0:28
23M
23.00 mi13:26:232:54:187:359:54
7:54
+0:13
24M
24.00 mi13:34:443:02:397:378:21
8:21
+0:27
40K
24.85 mi13:41:313:09:267:376:47
7:56
-0:25
25.2M
25.20 mi13:44:273:12:227:382:56
8:30
+0:34
Finish
26.22 mi13:52:043:19:597:387:37
7:28
-1:02

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

7:38 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:33

90% of race

Time at Steady Pace

19:26

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:55:1223:077:2623:07
7:26
#11715
10K
6.21 mi11:18:3246:277:2923:20
7:31
#11922
15K
9.32 mi11:41:471:09:427:2923:15
7:29
#11799
20K
12.43 mi12:04:501:32:457:2823:03
7:25
#11344
Half
13.11 mi12:09:511:37:467:275:01
7:21
#11297
25K
15.53 mi12:28:001:55:557:2818:09
7:29
#11004
30K
18.64 mi12:52:002:19:557:3024:00
7:43
#10642
20M
20.00 mi13:02:352:30:307:3110:35
7:47
#10463
21M
21.00 mi13:10:442:38:397:338:09
8:09
#10286
35K
21.75 mi13:16:292:44:247:345:45
7:41
#10263
23M
23.00 mi13:26:232:54:187:359:54
7:54
#10180
24M
24.00 mi13:34:443:02:397:378:21
8:21
#10314
40K
24.85 mi13:41:313:09:267:376:47
7:56
#10254
25.2M
25.20 mi13:44:273:12:227:382:56
8:30
#10206
Finish
26.22 mi13:52:043:19:597:387:37
7:28
#10138
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117152636263611628(Top 41%)2697(Top 22%)2697(Top 49%)
10K6.21 mi3.10 mi11922-2072767-1312767-13112201(Top 43%)2926(Top 24%)2926(Top 54%)
15K9.32 mi3.11 mi11799+1232712+552712+5511628(Top 41%)2697(Top 22%)2697(Top 49%)
20K12.43 mi3.11 mi11344+4552522+1902522+19010077(Top 35%)1996(Top 16%)1996(Top 36%)
Half13.11 mi0.68 mi11297+472500+222500+2210541(Top 37%)2206(Top 18%)2206(Top 40%)
25K15.53 mi2.42 mi11004+2932387+1132387+1139865(Top 35%)2051(Top 17%)2051(Top 38%)
30K18.64 mi3.11 mi10642+3622277+1102277+1109378(Top 33%)1997(Top 16%)1997(Top 37%)
20M20.00 mi1.36 mi10463+1792229+482229+488971(Top 32%)1978(Top 16%)1978(Top 36%)
21M21.00 mi1.00 mi10286+1772181+482181+488296(Top 29%)1855(Top 15%)1855(Top 34%)
35K21.75 mi0.75 mi10263+232193-122193-1210011(Top 35%)2597(Top 21%)2597(Top 47%)
23M23.00 mi1.25 mi10180+832197-42197-49363(Top 33%)2430(Top 20%)2430(Top 44%)
24M24.00 mi1.00 mi10314-1342293-962293-9613571(Top 48%)4594(Top 38%)4594(Top 84%)
40K24.85 mi0.85 mi10254+602303-102303-109720(Top 34%)2779(Top 23%)2779(Top 51%)
25.2M25.20 mi0.35 mi10206+482294+92294+98882(Top 31%)2466(Top 20%)2466(Top 45%)
Finish26.22 mi1.02 mi10138+682291+32291+39034(Top 32%)2552(Top 21%)2552(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

11628

Females

2697

F18-39

2697

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12201

Females

2926

F18-39

2926

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

11628

Females

2697

F18-39

2697

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

10077

Females

1996

F18-39

1996

20K→Half

12.4 - 13.1 mi

Top 37%
×2stories
+19ft-37ft

Overall

10541

Females

2206

F18-39

2206

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9865

Females

2051

F18-39

2051

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

9378

Females

1997

F18-39

1997

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

8971

Females

1978

F18-39

1978

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8296

Females

1855

F18-39

1855

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

10011

Females

2597

F18-39

2597

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9363

Females

2430

F18-39

2430

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13571

Females

4594

F18-39

4594

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9720

Females

2779

F18-39

2779

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8882

Females

2466

F18-39

2466

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9034

Females

2552

F18-39

2552

Passing Analysis

Category:
Athletes Passed
2633
Passed By
1056
Net Change
+1577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11715
5K → 10K163370-207#11715#11922
10K → 15K233110+123#11922#11799
15K → 20K47722+455#11799#11344
20K → Half5710+47#11344#11297
Half → 25K32431+293#11297#11004
25K → 30K43068+362#11004#10642
30K → 20M20425+179#10642#10463
20M → 21M20225+177#10463#10286
21M → 35K7047+23#10286#10263
35K → 23M13956+83#10263#10180
23M → 24M51185-134#10180#10314
24M → 40K10545+60#10314#10254
40K → 25.2M6618+48#10254#10206
25.2M → Finish11244+68#10206#10138
TOTALS26331056+1577
📊

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