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BOSTON MARATHON 2025

Courtney Olson

Bib: 32091•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
51:08
↑ 79↓ 1380.4%
15K· 9.32 mi
8:24/mi
1:17:15
↑ 67↓ 78
20K· 12.43 mi
10:02/mi
1:48:24
↑ 106↓ 860.1%
Half· 13.11 mi
9:51/mi
1:55:07
↑ 19↓ 370.5%
25K· 15.53 mi
11:39/mi
2:23:22
↑ 66↓ 880.2%
30K· 18.64 mi
11:56/mi
3:00:28
↑ 181↓ 1480.2%
20M
11:16/mi
3:15:47
↑ 64↓ 500.2%
21M
11:35/mi
3:27:22
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:34:34
↑ 17↓ 861.7%
23M
10:22/mi
3:47:33
↑ 23↓ 630.6%
24M
10:59/mi
3:58:32
↓ 821.3%
40K· 24.85 mi
11:08/mi
4:08:03
↓ 200.3%
25.2M
11:13/mi
4:11:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:32/mi
4:21:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:07
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:26:31
Pace11:11 /mi
📊Positive Split: 27.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0125:318:1325:31
8:13
-
10K
6.21 mi12:15:3851:088:1425:37
8:15
+0:02
15K
9.32 mi12:41:451:17:158:1726:07
8:24
+0:09
20K
12.43 mi13:12:541:48:248:4331:09
10:02
+1:38
Half
13.11 mi13:19:371:55:078:476:43
9:51
-0:11
25K
15.53 mi13:47:522:23:229:1428:15
11:39
+1:48
30K
18.64 mi14:24:583:00:289:4137:06
11:56
+0:17
20M
20.00 mi14:40:173:15:479:4715:19
11:16
-0:40
21M
21.00 mi14:51:523:27:229:5211:35
11:35
+0:19
35K
21.75 mi14:59:043:34:349:527:12
9:37
-1:58
23M
23.00 mi15:12:033:47:339:5412:59
10:22
+0:45
24M
24.00 mi15:23:023:58:329:5610:59
10:59
+0:37
40K
24.85 mi15:32:334:08:039:599:31
11:08
+0:09
25.2M
25.20 mi15:36:254:11:5510:003:52
11:13
+0:05
Finish
26.22 mi15:46:084:21:389:599:43
9:32
-1:41

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

8:13 /mi

Average Pace

9:59 /mi

Slowest Pace

11:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:10

36% of race

Time at Steady Pace

50:51

19% of race

Time at Slower Pace

1:56:37

45% of race

Average Pace: 9:59 /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 mi11:50:0125:318:1325:31
8:13
#18217
10K
6.21 mi12:15:3851:088:1425:37
8:15
#18181
15K
9.32 mi12:41:451:17:158:1726:07
8:24
#18340
20K
12.43 mi13:12:541:48:248:4331:09
10:02
#20546
Half
13.11 mi13:19:371:55:078:476:43
9:51
#20825
25K
15.53 mi13:47:522:23:229:1428:15
11:39
#22541
30K
18.64 mi14:24:583:00:289:4137:06
11:56
#23348
20M
20.00 mi14:40:173:15:479:4715:19
11:16
#23400
21M
21.00 mi14:51:523:27:229:5211:35
11:35
#23354
35K
21.75 mi14:59:043:34:349:527:12
9:37
#23273
23M
23.00 mi15:12:033:47:339:5412:59
10:22
#23183
24M
24.00 mi15:23:023:58:329:5610:59
10:59
#23210
40K
24.85 mi15:32:334:08:039:599:31
11:08
#23201
25.2M
25.20 mi15:36:254:11:5510:003:52
11:13
#23172
Finish
26.22 mi15:46:084:21:389:599:43
9:32
#23128
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182176475647518762(Top 66%)6766(Top 55%)6766(Top 124%)
10K6.21 mi3.10 mi18181+366441+346441+3418216(Top 64%)6434(Top 53%)6434(Top 118%)
15K9.32 mi3.11 mi18340-1596533-926533-9218762(Top 66%)6766(Top 55%)6766(Top 124%)
20K12.43 mi3.11 mi20546-22067788-12557788-125524278(Top 85%)9866(Top 81%)9866(Top 180%)
Half13.11 mi0.68 mi20825-2797937-1497937-14924497(Top 86%)9991(Top 82%)9991(Top 183%)
25K15.53 mi2.42 mi22541-17168888-9518888-95126044(Top 92%)10883(Top 89%)10883(Top 199%)
30K18.64 mi3.11 mi23348-8079376-4889376-48825510(Top 90%)10679(Top 87%)10679(Top 195%)
20M20.00 mi1.36 mi23400-529417-419417-4124145(Top 85%)10032(Top 82%)10032(Top 183%)
21M21.00 mi1.00 mi23354+469417941722786(Top 80%)9391(Top 77%)9391(Top 172%)
35K21.75 mi0.75 mi23273+819389+289389+2820802(Top 73%)8403(Top 69%)8403(Top 154%)
23M23.00 mi1.25 mi23183+909366+239366+2321664(Top 76%)8905(Top 73%)8905(Top 163%)
24M24.00 mi1.00 mi23210-279403-379403-3723958(Top 84%)10092(Top 83%)10092(Top 185%)
40K24.85 mi0.85 mi23201+99417-149417-1423432(Top 82%)9911(Top 81%)9911(Top 181%)
25.2M25.20 mi0.35 mi23172+299402+159402+1521323(Top 75%)8833(Top 72%)8833(Top 162%)
Finish26.22 mi1.02 mi23128+449392+109392+1021322(Top 75%)8829(Top 72%)8829(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18762

Females

6766

F18-39

6766

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18216

Females

6434

F18-39

6434

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18762

Females

6766

F18-39

6766

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24278

Females

9866

F18-39

9866

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24497

Females

9991

F18-39

9991

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26044

Females

10883

F18-39

10883

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25510

Females

10679

F18-39

10679

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

24145

Females

10032

F18-39

10032

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22786

Females

9391

F18-39

9391

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

20802

Females

8403

F18-39

8403

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

21664

Females

8905

F18-39

8905

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23958

Females

10092

F18-39

10092

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23432

Females

9911

F18-39

9911

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21323

Females

8833

F18-39

8833

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21322

Females

8829

F18-39

8829

Passing Analysis

Category:
Athletes Passed
1023
Passed By
5934
Net Change
-4911
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18217
5K → 10K290254+36#18217#18181
10K → 15K131290-159#18181#18340
15K → 20K92215-2206#18340#20546
20K → Half4283-279#20546#20825
Half → 25K51721-1716#20825#22541
25K → 30K28835-807#22541#23348
30K → 20M63115-52#23348#23400
20M → 21M10054+46#23400#23354
21M → 35K909+81#23354#23273
35K → 23M11727+90#23273#23183
23M → 24M3966-27#23183#23210
24M → 40K5142+9#23210#23201
40K → 25.2M356+29#23201#23172
25.2M → Finish6117+44#23172#23128
TOTALS10235934-4911
📊

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