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BOSTON MARATHON 2025

Katherine Louscher

Bib: 12924•F

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 35%
Gender (Female)
#0 / 12228
Top 18%
Division (F18-39)
#0 / 5469
Top 31%
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
7:25/mi
23:01
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
45:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:08:49
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:32:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:37:30
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:55:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:41/mi
2:19:51
↑ 181↓ 1480.2%
20M
7:51/mi
2:30:31
↑ 64↓ 500.2%
21M
8:25/mi
2:38:56
↑ 106↓ 241.6%
35K· 21.75 mi
7:25/mi
2:44:29
↑ 17↓ 861.7%
23M
7:47/mi
2:54:14
↑ 23↓ 630.6%
24M
7:42/mi
3:01:56
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:08:33
↓ 200.3%
25.2M
8:33/mi
3:11:30
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:19:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:41:37
Pace7:45 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1323:017:2523:01
7:25
-
10K
6.21 mi11:15:5945:477:2222:46
7:20
-0:05
15K
9.32 mi11:39:011:08:497:2323:02
7:25
+0:05
20K
12.43 mi12:02:401:32:287:2623:39
7:37
+0:12
Half
13.11 mi12:07:421:37:307:265:02
7:23
-0:14
25K
15.53 mi12:26:101:55:587:2818:28
7:37
+0:14
30K
18.64 mi12:50:032:19:517:3023:53
7:41
+0:04
20M
20.00 mi13:00:432:30:317:3210:40
7:51
+0:10
21M
21.00 mi13:09:082:38:567:348:25
8:25
+0:34
35K
21.75 mi13:14:412:44:297:345:33
7:25
-1:00
23M
23.00 mi13:24:262:54:147:359:45
7:47
+0:22
24M
24.00 mi13:32:083:01:567:357:42
7:42
-0:05
40K
24.85 mi13:38:453:08:337:356:37
7:44
+0:02
25.2M
25.20 mi13:41:423:11:307:362:57
8:33
+0:49
Finish
26.22 mi13:49:193:19:077:367:37
7:28
-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

7:20 /mi

Average Pace

7:36 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:45

94% of race

Time at Steady Pace

11:22

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:36 /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 mi10:53:1323:017:2523:01
7:25
#11419
10K
6.21 mi11:15:5945:477:2222:46
7:20
#10943
15K
9.32 mi11:39:011:08:497:2323:02
7:25
#10910
20K
12.43 mi12:02:401:32:287:2623:39
7:37
#11127
Half
13.11 mi12:07:421:37:307:265:02
7:23
#11107
25K
15.53 mi12:26:101:55:587:2818:28
7:37
#11032
30K
18.64 mi12:50:032:19:517:3023:53
7:41
#10613
20M
20.00 mi13:00:432:30:317:3210:40
7:51
#10471
21M
21.00 mi13:09:082:38:567:348:25
8:25
#10421
35K
21.75 mi13:14:412:44:297:345:33
7:25
#10308
23M
23.00 mi13:24:262:54:147:359:45
7:47
#10147
24M
24.00 mi13:32:083:01:567:357:42
7:42
#10069
40K
24.85 mi13:38:453:08:337:356:37
7:44
#9961
25.2M
25.20 mi13:41:423:11:307:362:57
8:33
#9937
Finish
26.22 mi13:49:193:19:077:367:37
7:28
#9862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114192488248811011(Top 39%)2380(Top 19%)2380(Top 44%)
10K6.21 mi3.10 mi10943+4762279+2092279+20910577(Top 37%)2098(Top 17%)2098(Top 38%)
15K9.32 mi3.11 mi10910+332274+52274+511011(Top 39%)2380(Top 19%)2380(Top 44%)
20K12.43 mi3.11 mi11127-2172412-1382412-13811688(Top 41%)2826(Top 23%)2826(Top 52%)
Half13.11 mi0.68 mi11107+202402+102402+1010731(Top 38%)2296(Top 19%)2296(Top 42%)
25K15.53 mi2.42 mi11032+752406-42406-410917(Top 38%)2539(Top 21%)2539(Top 46%)
30K18.64 mi3.11 mi10613+4192261+1452261+1459119(Top 32%)1896(Top 16%)1896(Top 35%)
20M20.00 mi1.36 mi10471+1422234+272234+279387(Top 33%)2166(Top 18%)2166(Top 40%)
21M21.00 mi1.00 mi10421+502252-182252-189967(Top 35%)2590(Top 21%)2590(Top 47%)
35K21.75 mi0.75 mi10308+1132216+362216+368109(Top 29%)1735(Top 14%)1735(Top 32%)
23M23.00 mi1.25 mi10147+1612182+342182+348521(Top 30%)2052(Top 17%)2052(Top 38%)
24M24.00 mi1.00 mi10069+782176+62176+69135(Top 32%)2391(Top 20%)2391(Top 44%)
40K24.85 mi0.85 mi9961+1082156+202156+208389(Top 30%)2172(Top 18%)2172(Top 40%)
25.2M25.20 mi0.35 mi9937+242158-22158-29157(Top 32%)2594(Top 21%)2594(Top 47%)
Finish26.22 mi1.02 mi9862+752154+42154+49032(Top 32%)2550(Top 21%)2550(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

11011

Females

2380

F18-39

2380

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10577

Females

2098

F18-39

2098

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

11011

Females

2380

F18-39

2380

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11688

Females

2826

F18-39

2826

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10731

Females

2296

F18-39

2296

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10917

Females

2539

F18-39

2539

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

9119

Females

1896

F18-39

1896

30K→20M

18.6 - 20.0 mi

Top 33%
×5story building
+64ft-50ft

Overall

9387

Females

2166

F18-39

2166

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9967

Females

2590

F18-39

2590

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

8109

Females

1735

F18-39

1735

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8521

Females

2052

F18-39

2052

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

9135

Females

2391

F18-39

2391

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8389

Females

2172

F18-39

2172

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

9157

Females

2594

F18-39

2594

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9032

Females

2550

F18-39

2550

Passing Analysis

Category:
Athletes Passed
2631*
Passed By
1074
Net Change
+1557
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11419
5K → 10K579103+476#11419#10943
10K → 15K189156+33#10943#10910
15K → 20K117334-217#10910#11127
20K → Half4626+20#11127#11107
Half → 25K200125+75#11107#11032
25K → 30K47051+419#11032#10613
30K → 20M18139+142#10613#10471
20M → 21M13686+50#10471#10421
21M → 35K12411+113#10421#10308
35K → 23M18928+161#10308#10147
23M → 24M11133+78#10147#10069
24M → 40K132*24+108#10069#9961
40K → 25.2M4521+24#9961#9937
25.2M → Finish11237+75#9937#9862
TOTALS2631*1074+1557

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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