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BOSTON MARATHON 2025

Lydia Oosten

Bib: 24139•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 47%
Division (F55-59)
#0 / 994
Top 28%
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
8:34/mi
26:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
53:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:20:18
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:47:15
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:53:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:48/mi
2:14:23
↑ 66↓ 880.2%
30K· 18.64 mi
9:05/mi
2:42:35
↑ 181↓ 1480.2%
20M
9:00/mi
2:54:49
↑ 64↓ 500.2%
21M
9:36/mi
3:04:25
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
3:10:47
↑ 17↓ 861.7%
23M
8:53/mi
3:21:54
↑ 23↓ 630.6%
24M
8:44/mi
3:30:38
↓ 821.3%
40K· 24.85 mi
9:00/mi
3:38:20
↓ 200.3%
25.2M
10:00/mi
3:41:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:54/mi
3:50:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:03
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time1:57:48
Pace8:59 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3826:378:3426:37
8:34
-
10K
6.21 mi11:51:2653:258:3626:48
8:38
+0:04
15K
9.32 mi12:18:191:20:188:3726:53
8:39
+0:01
20K
12.43 mi12:45:161:47:158:3826:57
8:40
+0:01
Half
13.11 mi12:51:041:53:038:375:48
8:30
-0:10
25K
15.53 mi13:12:242:14:238:3921:20
8:48
+0:18
30K
18.64 mi13:40:362:42:358:4328:12
9:05
+0:17
20M
20.00 mi13:52:502:54:498:4412:14
9:00
-0:05
21M
21.00 mi14:02:263:04:258:479:36
9:36
+0:36
35K
21.75 mi14:08:483:10:478:466:22
8:31
-1:05
23M
23.00 mi14:19:553:21:548:4711:07
8:53
+0:22
24M
24.00 mi14:28:393:30:388:478:44
8:44
-0:09
40K
24.85 mi14:36:213:38:208:477:42
9:00
+0:16
25.2M
25.20 mi14:39:483:41:478:483:27
10:00
+1:00
Finish
26.22 mi14:48:523:50:518:499:04
8:54
-1:06

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

8:30 /mi

Average Pace

8:49 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:48

94% of race

Time at Steady Pace

13:03

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:48 /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 mi11:24:3826:378:3426:37
8:34
#20295
10K
6.21 mi11:51:2653:258:3626:48
8:38
#20385
15K
9.32 mi12:18:191:20:188:3726:53
8:39
#20292
20K
12.43 mi12:45:161:47:158:3826:57
8:40
#20029
Half
13.11 mi12:51:041:53:038:375:48
8:30
#19986
25K
15.53 mi13:12:242:14:238:3921:20
8:48
#19787
30K
18.64 mi13:40:362:42:358:4328:12
9:05
#19447
20M
20.00 mi13:52:502:54:498:4412:14
9:00
#19242
21M
21.00 mi14:02:263:04:258:479:36
9:36
#19085
35K
21.75 mi14:08:483:10:478:466:22
8:31
#18950
23M
23.00 mi14:19:553:21:548:4711:07
8:53
#18746
24M
24.00 mi14:28:393:30:388:478:44
8:44
#18624
40K
24.85 mi14:36:213:38:208:477:42
9:00
#18506
25.2M
25.20 mi14:39:483:41:478:483:27
10:00
#18489
Finish
26.22 mi14:48:523:50:518:499:04
8:54
#18518
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi202957680768020233(Top 71%)7563(Top 62%)7563(Top 761%)
10K6.21 mi3.10 mi20385-907698-187698-1820487(Top 72%)7734(Top 63%)7734(Top 778%)
15K9.32 mi3.11 mi20292+937637+617637+6120233(Top 71%)7563(Top 62%)7563(Top 761%)
20K12.43 mi3.11 mi20029+2637490+1477490+14719290(Top 68%)7076(Top 58%)7076(Top 712%)
Half13.11 mi0.68 mi19986+437469+217469+2119256(Top 68%)7047(Top 58%)7047(Top 709%)
25K15.53 mi2.42 mi19787+1997362+1077362+10718930(Top 67%)6941(Top 57%)6941(Top 698%)
30K18.64 mi3.11 mi19447+3407208+1547208+15418083(Top 64%)6622(Top 54%)6622(Top 666%)
20M20.00 mi1.36 mi19242+2057121+877121+8716826(Top 59%)6051(Top 49%)6051(Top 609%)
21M21.00 mi1.00 mi19085+1577052+697052+6916581(Top 58%)6027(Top 49%)6027(Top 606%)
35K21.75 mi0.75 mi18950+1356997+556997+5515588(Top 55%)5578(Top 46%)5578(Top 561%)
23M23.00 mi1.25 mi18746+2046907+906907+9015593(Top 55%)5671(Top 46%)5671(Top 571%)
24M24.00 mi1.00 mi18624+1226860+476860+4715966(Top 56%)5920(Top 48%)5920(Top 596%)
40K24.85 mi0.85 mi18506+1186826+346826+3416378(Top 58%)6255(Top 51%)6255(Top 629%)
25.2M25.20 mi0.35 mi18489+176825+16825+117118(Top 60%)6656(Top 54%)6656(Top 670%)
Finish26.22 mi1.02 mi18518-296859-346859-3418535(Top 65%)7349(Top 60%)7349(Top 739%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20233

Females

7563

F55-59

7563

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20487

Females

7734

F55-59

7734

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20233

Females

7563

F55-59

7563

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19290

Females

7076

F55-59

7076

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19256

Females

7047

F55-59

7047

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

18930

Females

6941

F55-59

6941

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

18083

Females

6622

F55-59

6622

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16826

Females

6051

F55-59

6051

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16581

Females

6027

F55-59

6027

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15588

Females

5578

F55-59

5578

35K→23M

21.8 - 23.0 mi

Top 55%
×5story building
+23ft-63ft

Overall

15593

Females

5671

F55-59

5671

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15966

Females

5920

F55-59

5920

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16378

Females

6255

F55-59

6255

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17118

Females

6656

F55-59

6656

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18535

Females

7349

F55-59

7349

Passing Analysis

Category:
Athletes Passed
2643
Passed By
866
Net Change
+1777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20295
5K → 10K235325-90#20295#20385
10K → 15K233140+93#20385#20292
15K → 20K33370+263#20292#20029
20K → Half518+43#20029#19986
Half → 25K26061+199#19986#19787
25K → 30K40161+340#19787#19447
30K → 20M22419+205#19447#19242
20M → 21M18023+157#19242#19085
21M → 35K1405+135#19085#18950
35K → 23M22218+204#18950#18746
23M → 24M1264+122#18746#18624
24M → 40K14224+118#18624#18506
40K → 25.2M4326+17#18506#18489
25.2M → Finish5382-29#18489#18518
TOTALS2643866+1777
📊

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