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BOSTON MARATHON 2025

Caroline Houser

Bib: 10618•F

MD

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Female)
#0 / 12228
Top 2%
Division (F18-39)
#0 / 5469
Top 5%
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
6:41/mi
20:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:42/mi
41:35
↑ 79↓ 1380.4%
15K· 9.32 mi
6:40/mi
1:02:19
↑ 67↓ 78
20K· 12.43 mi
6:39/mi
1:23:00
↑ 106↓ 860.1%
Half· 13.11 mi
6:41/mi
1:27:34
↑ 19↓ 370.5%
25K· 15.53 mi
6:41/mi
1:43:46
↑ 66↓ 880.2%
30K· 18.64 mi
6:50/mi
2:04:59
↑ 181↓ 1480.2%
20M
7:01/mi
2:14:31
↑ 64↓ 500.2%
21M
7:15/mi
2:21:46
↑ 106↓ 241.6%
35K· 21.75 mi
6:56/mi
2:26:57
↑ 17↓ 861.7%
23M
7:00/mi
2:35:43
↑ 23↓ 630.6%
24M
6:59/mi
2:42:42
↓ 821.3%
40K· 24.85 mi
6:56/mi
2:48:38
↓ 200.3%
25.2M
7:29/mi
2:51:13
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
2:58:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:34
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:30:31
Pace6:54 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:5520:456:4120:45
6:41
-
10K
6.21 mi11:07:4541:356:4220:50
6:42
+0:01
15K
9.32 mi11:28:291:02:196:4120:44
6:40
-0:02
20K
12.43 mi11:49:101:23:006:4120:41
6:39
-0:01
Half
13.11 mi11:53:441:27:346:414:34
6:41
+0:02
25K
15.53 mi12:09:561:43:466:4116:12
6:41
0:00
30K
18.64 mi12:31:092:04:596:4221:13
6:50
+0:09
20M
20.00 mi12:40:412:14:316:449:32
7:01
+0:11
21M
21.00 mi12:47:562:21:466:457:15
7:15
+0:14
35K
21.75 mi12:53:072:26:576:455:11
6:56
-0:19
23M
23.00 mi13:01:532:35:436:468:46
7:00
+0:04
24M
24.00 mi13:08:522:42:426:476:59
6:59
-0:01
40K
24.85 mi13:14:482:48:386:475:56
6:56
-0:03
25.2M
25.20 mi13:17:232:51:136:482:35
7:29
+0:33
Finish
26.22 mi13:24:152:58:056:486:52
6:44
-0:45

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

6:39 /mi

Average Pace

6:48 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:30

99% of race

Time at Steady Pace

2:35

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:48 /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 mi10:46:5520:456:4120:45
6:41
#5241
10K
6.21 mi11:07:4541:356:4220:50
6:42
#5277
15K
9.32 mi11:28:291:02:196:4120:44
6:40
#5105
20K
12.43 mi11:49:101:23:006:4120:41
6:39
#4805
Half
13.11 mi11:53:441:27:346:414:34
6:41
#4818
25K
15.53 mi12:09:561:43:466:4116:12
6:41
#4622
30K
18.64 mi12:31:092:04:596:4221:13
6:50
#4353
20M
20.00 mi12:40:412:14:316:449:32
7:01
#4304
21M
21.00 mi12:47:562:21:466:457:15
7:15
#4203
35K
21.75 mi12:53:072:26:576:455:11
6:56
#4211
23M
23.00 mi13:01:532:35:436:468:46
7:00
#4157
24M
24.00 mi13:08:522:42:426:476:59
6:59
#4144
40K
24.85 mi13:14:482:48:386:475:56
6:56
#4106
25.2M
25.20 mi13:17:232:51:136:482:35
7:29
#4082
Finish
26.22 mi13:24:152:58:056:486:52
6:44
#4057
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi52413543544820(Top 17%)317(Top 3%)317(Top 6%)
10K6.21 mi3.10 mi5277-36371-17371-175366(Top 19%)396(Top 3%)396(Top 7%)
15K9.32 mi3.11 mi5105+172343+28343+284820(Top 17%)317(Top 3%)317(Top 6%)
20K12.43 mi3.11 mi4805+300315+28315+284055(Top 14%)240(Top 2%)240(Top 4%)
Half13.11 mi0.68 mi4818-13319-4319-45126(Top 18%)391(Top 3%)391(Top 7%)
25K15.53 mi2.42 mi4622+196303+16303+164021(Top 14%)264(Top 2%)264(Top 5%)
30K18.64 mi3.11 mi4353+269272+31272+313605(Top 13%)254(Top 2%)254(Top 5%)
20M20.00 mi1.36 mi4304+49274-2274-24151(Top 15%)348(Top 3%)348(Top 6%)
21M21.00 mi1.00 mi4203+101272+2272+23329(Top 12%)267(Top 2%)267(Top 5%)
35K21.75 mi0.75 mi4211-8281-9281-94839(Top 17%)574(Top 5%)574(Top 10%)
23M23.00 mi1.25 mi4157+54284-3284-33733(Top 13%)364(Top 3%)364(Top 7%)
24M24.00 mi1.00 mi4144+13289-5289-54488(Top 16%)593(Top 5%)593(Top 11%)
40K24.85 mi0.85 mi4106+38296-7296-73513(Top 12%)392(Top 3%)392(Top 7%)
25.2M25.20 mi0.35 mi4082+24298-2298-23262(Top 11%)398(Top 3%)398(Top 7%)
Finish26.22 mi1.02 mi4057+252982984068(Top 14%)583(Top 5%)583(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21story building
+97ft-345ft

Overall

4820

Females

317

F18-39

317

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5366

Females

396

F18-39

396

10K→15K

6.2 - 9.3 mi

Top 17%
×3story building
+67ft-78ft

Overall

4820

Females

317

F18-39

317

15K→20K

9.3 - 12.4 mi

Top 14%
×5story building
+106ft-86ft

Overall

4055

Females

240

F18-39

240

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

5126

Females

391

F18-39

391

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

4021

Females

264

F18-39

264

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3605

Females

254

F18-39

254

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4151

Females

348

F18-39

348

20M→21M

20.0 - 21.0 mi

Top 12%
×8story building
+106ft-24ft

Overall

3329

Females

267

F18-39

267

21M→35K

21.0 - 21.8 mi

Top 17%
×7story building
+17ft-86ft

Overall

4839

Females

574

F18-39

574

35K→23M

21.8 - 23.0 mi

Top 13%
×5story building
+23ft-63ft

Overall

3733

Females

364

F18-39

364

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4488

Females

593

F18-39

593

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3513

Females

392

F18-39

392

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3262

Females

398

F18-39

398

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

4068

Females

583

F18-39

583

Passing Analysis

Category:
Athletes Passed
1785
Passed By
601
Net Change
+1184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5241
5K → 10K162198-36#5241#5277
10K → 15K24068+172#5277#5105
15K → 20K31212+300#5105#4805
20K → Half1730-13#4805#4818
Half → 25K21216+196#4818#4622
25K → 30K29021+269#4622#4353
30K → 20M9546+49#4353#4304
20M → 21M11817+101#4304#4203
21M → 35K3038-8#4203#4211
35K → 23M9945+54#4211#4157
23M → 24M5542+13#4157#4144
24M → 40K5618+38#4144#4106
40K → 25.2M3410+24#4106#4082
25.2M → Finish6540+25#4082#4057
TOTALS1785601+1184
📊

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