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BOSTON MARATHON 2025

Louise Nolan

Bib: 26997•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:58
Rank: #23638
Start → 5K
9:19/mi
28:58 split
10K· 6.21 mi
57:43
Rank: #23512 (+126)
5K → 10K
9:15/mi
28:45 split
15K· 9.32 mi
1:26:39
Rank: #23431 (+81)
10K → 15K
9:19/mi
28:56 split
20K· 12.43 mi
1:55:48
Rank: #23191 (+240)
15K → 20K
9:23/mi
29:09 split
Half· 13.11 mi
2:02:05
Rank: #23164 (+27)
20K → Half
9:13/mi
6:17 split
25K· 15.53 mi
2:25:24
Rank: #22987 (+177)
Half → 25K
9:37/mi
23:19 split
30K· 18.64 mi
2:56:20
Rank: #22685 (+302)
25K → 30K
9:57/mi
30:56 split
20M
3:09:39
Rank: #22497 (+188)
30K → 20M
9:48/mi
13:19 split
21M
3:20:50
Rank: #22454 (+43)
20M → 21M
11:11/mi
11:11 split
35K· 21.75 mi
3:27:58
Rank: #22369 (+85)
21M → 35K
9:32/mi
7:08 split
23M
3:40:31
Rank: #22240 (+129)
35K → 23M
10:01/mi
12:33 split
24M
3:50:08
Rank: #22153 (+87)
23M → 24M
9:37/mi
9:37 split
40K· 24.85 mi
3:58:37
Rank: #22077 (+76)
24M → 40K
9:55/mi
8:29 split
25.2M
4:02:21
Rank: #22033 (+44)
40K → 25.2M
10:50/mi
3:44 split
Finish· 26.22 mi
4:11:54
Rank: #21978 (+55)
25.2M → Finish
9:22/mi
9:33 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:05
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:09:49
Pace9:54 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5228:589:1928:58
9:19
-
10K
6.21 mi12:19:3757:439:1728:45
9:15
-0:04
15K
9.32 mi12:48:331:26:399:1828:56
9:19
+0:04
20K
12.43 mi13:17:421:55:489:1929:09
9:23
+0:04
Half
13.11 mi13:23:592:02:059:196:17
9:13
-0:10
25K
15.53 mi13:47:182:25:249:2223:19
9:37
+0:24
30K
18.64 mi14:18:142:56:209:2830:56
9:57
+0:20
20M
20.00 mi14:31:333:09:399:2913:19
9:48
-0:09
21M
21.00 mi14:42:443:20:509:3411:11
11:11
+1:23
35K
21.75 mi14:49:523:27:589:347:08
9:32
-1:39
23M
23.00 mi15:02:253:40:319:3512:33
10:01
+0:29
24M
24.00 mi15:12:023:50:089:359:37
9:37
-0:24
40K
24.85 mi15:20:313:58:379:368:29
9:55
+0:18
25.2M
25.20 mi15:24:154:02:219:373:44
10:50
+0:55
Finish
26.22 mi15:33:484:11:549:379:33
9:22
-1:28

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

9:13 /mi

Average Pace

9:37 /mi

Slowest Pace

11:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:56

37% of race

Time at Steady Pace

1:32:05

37% of race

Time at Slower Pace

1:06:53

27% of race

Average Pace: 9:36 /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 mi11:50:5228:589:1928:58
9:19
#23638
10K
6.21 mi12:19:3757:439:1728:45
9:15
#23512
15K
9.32 mi12:48:331:26:399:1828:56
9:19
#23431
20K
12.43 mi13:17:421:55:489:1929:09
9:23
#23191
Half
13.11 mi13:23:592:02:059:196:17
9:13
#23164
25K
15.53 mi13:47:182:25:249:2223:19
9:37
#22987
30K
18.64 mi14:18:142:56:209:2830:56
9:57
#22685
20M
20.00 mi14:31:333:09:399:2913:19
9:48
#22497
21M
21.00 mi14:42:443:20:509:3411:11
11:11
#22454
35K
21.75 mi14:49:523:27:589:347:08
9:32
#22369
23M
23.00 mi15:02:253:40:319:3512:33
10:01
#22240
24M
24.00 mi15:12:023:50:089:359:37
9:37
#22153
40K
24.85 mi15:20:313:58:379:368:29
9:55
#22077
25.2M
25.20 mi15:24:154:02:219:373:44
10:50
#22033
Finish
26.22 mi15:33:484:11:549:379:33
9:22
#21978
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi236389502950223256(Top 82%)9235(Top 76%)9235(Top 538%)
10K6.21 mi3.10 mi23512+1269428+749428+7423375(Top 82%)9339(Top 76%)9339(Top 544%)
15K9.32 mi3.11 mi23431+819371+579371+5723256(Top 82%)9235(Top 76%)9235(Top 538%)
20K12.43 mi3.11 mi23191+2409229+1429229+14222523(Top 79%)8878(Top 73%)8878(Top 517%)
Half13.11 mi0.68 mi23164+279213+169213+1622655(Top 80%)8959(Top 73%)8959(Top 521%)
25K15.53 mi2.42 mi22987+1779139+749139+7422253(Top 78%)8788(Top 72%)8788(Top 512%)
30K18.64 mi3.11 mi22685+3029008+1319008+13121480(Top 76%)8495(Top 69%)8495(Top 494%)
20M20.00 mi1.36 mi22497+1888932+768932+7620320(Top 72%)7978(Top 65%)7978(Top 464%)
21M21.00 mi1.00 mi22454+438917+158917+1521870(Top 77%)8900(Top 73%)8900(Top 518%)
35K21.75 mi0.75 mi22369+858883+348883+3420470(Top 72%)8232(Top 67%)8232(Top 479%)
23M23.00 mi1.25 mi22240+1298852+318852+3120584(Top 72%)8344(Top 68%)8344(Top 486%)
24M24.00 mi1.00 mi22153+878822+308822+3020086(Top 71%)8135(Top 67%)8135(Top 474%)
40K24.85 mi0.85 mi22077+768798+248798+2420220(Top 71%)8271(Top 68%)8271(Top 481%)
25.2M25.20 mi0.35 mi22033+448781+178781+1720165(Top 71%)8255(Top 68%)8255(Top 481%)
Finish26.22 mi1.02 mi21978+558766+158766+1520697(Top 73%)8502(Top 70%)8502(Top 495%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23256

Females

9235

F40-44

9235

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23375

Females

9339

F40-44

9339

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23256

Females

9235

F40-44

9235

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

22523

Females

8878

F40-44

8878

20K→Half

12.4 - 13.1 mi

Top 80%
×2stories
+19ft-37ft

Overall

22655

Females

8959

F40-44

8959

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22253

Females

8788

F40-44

8788

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21480

Females

8495

F40-44

8495

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20320

Females

7978

F40-44

7978

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21870

Females

8900

F40-44

8900

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

20470

Females

8232

F40-44

8232

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

20584

Females

8344

F40-44

8344

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

20086

Females

8135

F40-44

8135

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20220

Females

8271

F40-44

8271

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20165

Females

8255

F40-44

8255

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

20697

Females

8502

F40-44

8502

Passing Analysis

Category:
Athletes Passed
2248
Passed By
588
Net Change
+1660
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23638
5K → 10K306180+126#23638#23512
10K → 15K213132+81#23512#23431
15K → 20K28646+240#23431#23191
20K → Half4316+27#23191#23164
Half → 25K22447+177#23164#22987
25K → 30K33129+302#22987#22685
30K → 20M19911+188#22685#22497
20M → 21M9148+43#22497#22454
21M → 35K916+85#22454#22369
35K → 23M15122+129#22369#22240
23M → 24M947+87#22240#22153
24M → 40K8812+76#22153#22077
40K → 25.2M5410+44#22077#22033
25.2M → Finish7722+55#22033#21978
TOTALS2248588+1660
📊

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