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BOSTON MARATHON 2025

Olive Mclachlan

Bib: 23267•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F55-59)
#0 / 994
Top 21%
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
8:31/mi
26:27
↑ 97↓ 3451.5%
10K· 6.21 mi
8:33/mi
53:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:19:18
↑ 67↓ 78
20K· 12.43 mi
8:30/mi
1:45:42
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:51:26
↑ 19↓ 370.5%
25K· 15.53 mi
8:32/mi
2:12:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:42/mi
2:39:10
↑ 181↓ 1480.2%
20M
8:42/mi
2:50:59
↑ 64↓ 500.2%
21M
9:15/mi
3:00:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:51/mi
3:06:51
↑ 17↓ 861.7%
23M
9:02/mi
3:18:10
↑ 23↓ 630.6%
24M
8:45/mi
3:26:55
↓ 821.3%
40K· 24.85 mi
8:46/mi
3:34:25
↓ 200.3%
25.2M
9:40/mi
3:37:45
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
3:46:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:26
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:55:04
Pace8:47 /mi
📊Positive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5826:278:3126:27
8:31
-
10K
6.21 mi11:49:3353:028:3226:35
8:33
+0:02
15K
9.32 mi12:15:491:19:188:3026:16
8:27
-0:06
20K
12.43 mi12:42:131:45:428:3026:24
8:30
+0:03
Half
13.11 mi12:47:571:51:268:305:44
8:24
-0:06
25K
15.53 mi13:08:382:12:078:3020:41
8:32
+0:08
30K
18.64 mi13:35:412:39:108:3227:03
8:42
+0:10
20M
20.00 mi13:47:302:50:598:3311:49
8:42
0:00
21M
21.00 mi13:56:453:00:148:359:15
9:15
+0:33
35K
21.75 mi14:03:223:06:518:356:37
8:51
-0:24
23M
23.00 mi14:14:413:18:108:3711:19
9:02
+0:11
24M
24.00 mi14:23:263:26:558:378:45
8:45
-0:17
40K
24.85 mi14:30:563:34:258:387:30
8:46
+0:01
25.2M
25.20 mi14:34:163:37:458:383:20
9:40
+0:54
Finish
26.22 mi14:43:013:46:308:398:45
8:35
-1:05

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

8:24 /mi

Average Pace

8:39 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:55

94% of race

Time at Steady Pace

12:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:38 /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 mi11:22:5826:278:3126:27
8:31
#19958
10K
6.21 mi11:49:3353:028:3226:35
8:33
#20049
15K
9.32 mi12:15:491:19:188:3026:16
8:27
#19714
20K
12.43 mi12:42:131:45:428:3026:24
8:30
#19302
Half
13.11 mi12:47:571:51:268:305:44
8:24
#19255
25K
15.53 mi13:08:382:12:078:3020:41
8:32
#18927
30K
18.64 mi13:35:412:39:108:3227:03
8:42
#18374
20M
20.00 mi13:47:302:50:598:3311:49
8:42
#18090
21M
21.00 mi13:56:453:00:148:359:15
9:15
#17915
35K
21.75 mi14:03:223:06:518:356:37
8:51
#17864
23M
23.00 mi14:14:413:18:108:3711:19
9:02
#17759
24M
24.00 mi14:23:263:26:558:378:45
8:45
#17663
40K
24.85 mi14:30:563:34:258:387:30
8:46
#17558
25.2M
25.20 mi14:34:163:37:458:383:20
9:40
#17519
Finish
26.22 mi14:43:013:46:308:398:45
8:35
#17491
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi199587474747419065(Top 67%)6936(Top 57%)6936(Top 698%)
10K6.21 mi3.10 mi20049-917497-237497-2320131(Top 71%)7534(Top 62%)7534(Top 758%)
15K9.32 mi3.11 mi19714+3357300+1977300+19719065(Top 67%)6936(Top 57%)6936(Top 698%)
20K12.43 mi3.11 mi19302+4127081+2197081+21918233(Top 64%)6468(Top 53%)6468(Top 651%)
Half13.11 mi0.68 mi19255+477058+237058+2318638(Top 66%)6697(Top 55%)6697(Top 674%)
25K15.53 mi2.42 mi18927+3286874+1846874+18417386(Top 61%)6075(Top 50%)6075(Top 611%)
30K18.64 mi3.11 mi18374+5536589+2856589+28516055(Top 57%)5498(Top 45%)5498(Top 553%)
20M20.00 mi1.36 mi18090+2846471+1186471+11815072(Top 53%)5093(Top 42%)5093(Top 512%)
21M21.00 mi1.00 mi17915+1756382+896382+8914920(Top 53%)5136(Top 42%)5136(Top 517%)
35K21.75 mi0.75 mi17864+516367+156367+1517505(Top 62%)6631(Top 54%)6631(Top 667%)
23M23.00 mi1.25 mi17759+1056365+26365+216501(Top 58%)6172(Top 50%)6172(Top 621%)
24M24.00 mi1.00 mi17663+966339+266339+2616055(Top 57%)5964(Top 49%)5964(Top 600%)
40K24.85 mi0.85 mi17558+1056310+296310+2915070(Top 53%)5565(Top 46%)5565(Top 560%)
25.2M25.20 mi0.35 mi17519+396305+56305+515508(Top 55%)5832(Top 48%)5832(Top 587%)
Finish26.22 mi1.02 mi17491+286309-46309-416787(Top 59%)6448(Top 53%)6448(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

19065

Females

6936

F55-59

6936

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

20131

Females

7534

F55-59

7534

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

19065

Females

6936

F55-59

6936

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18233

Females

6468

F55-59

6468

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18638

Females

6697

F55-59

6697

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17386

Females

6075

F55-59

6075

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16055

Females

5498

F55-59

5498

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15072

Females

5093

F55-59

5093

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14920

Females

5136

F55-59

5136

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17505

Females

6631

F55-59

6631

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16501

Females

6172

F55-59

6172

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16055

Females

5964

F55-59

5964

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15070

Females

5565

F55-59

5565

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15508

Females

5832

F55-59

5832

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

16787

Females

6448

F55-59

6448

Passing Analysis

Category:
Athletes Passed
3180
Passed By
713
Net Change
+2467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19958
5K → 10K240331-91#19958#20049
10K → 15K39055+335#20049#19714
15K → 20K45139+412#19714#19302
20K → Half6013+47#19302#19255
Half → 25K34921+328#19255#18927
25K → 30K58330+553#18927#18374
30K → 20M29612+284#18374#18090
20M → 21M19419+175#18090#17915
21M → 35K8736+51#17915#17864
35K → 23M15954+105#17864#17759
23M → 24M12731+96#17759#17663
24M → 40K12217+105#17663#17558
40K → 25.2M5112+39#17558#17519
25.2M → Finish7143+28#17519#17491
TOTALS3180713+2467
📊

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