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BOSTON MARATHON 2025

Kara Stevens

Bib: 17975•F

SC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 22%
Division (F18-39)
#0 / 5469
Top 37%
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:11:14
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:34:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:40:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:58:53
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:23:24
↑ 181↓ 1480.2%
20M
7:55/mi
2:34:10
↑ 64↓ 500.2%
21M
8:14/mi
2:42:24
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:48:11
↑ 17↓ 861.7%
23M
7:47/mi
2:57:56
↑ 23↓ 630.6%
24M
7:31/mi
3:05:27
↓ 821.3%
40K· 24.85 mi
7:37/mi
3:11:58
↓ 200.3%
25.2M
8:07/mi
3:14:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:22:18
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:14
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:42:04
Pace7:47 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1623:547:4223:54
7:42
-
10K
6.21 mi11:37:4547:237:3823:29
7:34
-0:08
15K
9.32 mi12:01:361:11:147:3923:51
7:41
+0:07
20K
12.43 mi12:25:211:34:597:3923:45
7:39
-0:02
Half
13.11 mi12:30:361:40:147:395:15
7:42
+0:03
25K
15.53 mi12:49:151:58:537:3918:39
7:42
0:00
30K
18.64 mi13:13:462:23:247:4224:31
7:53
+0:11
20M
20.00 mi13:24:322:34:107:4210:46
7:55
+0:02
21M
21.00 mi13:32:462:42:247:448:14
8:14
+0:19
35K
21.75 mi13:38:332:48:117:445:47
7:44
-0:30
23M
23.00 mi13:48:182:57:567:449:45
7:47
+0:03
24M
24.00 mi13:55:493:05:277:447:31
7:31
-0:16
40K
24.85 mi14:02:203:11:587:436:31
7:37
+0:06
25.2M
25.20 mi14:05:083:14:467:442:48
8:07
+0:30
Finish
26.22 mi14:12:403:22:187:437:32
7:24
-0:43

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

7:24 /mi

Average Pace

7:43 /mi

Slowest Pace

8:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:04

96% of race

Time at Steady Pace

8:14

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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 mi11:14:1623:547:4223:54
7:42
#13919
10K
6.21 mi11:37:4547:237:3823:29
7:34
#13269
15K
9.32 mi12:01:361:11:147:3923:51
7:41
#13256
20K
12.43 mi12:25:211:34:597:3923:45
7:39
#12865
Half
13.11 mi12:30:361:40:147:395:15
7:42
#12874
25K
15.53 mi12:49:151:58:537:3918:39
7:42
#12626
30K
18.64 mi13:13:462:23:247:4224:31
7:53
#12203
20M
20.00 mi13:24:322:34:107:4210:46
7:55
#11985
21M
21.00 mi13:32:462:42:247:448:14
8:14
#11755
35K
21.75 mi13:38:332:48:117:445:47
7:44
#11688
23M
23.00 mi13:48:182:57:567:449:45
7:47
#11453
24M
24.00 mi13:55:493:05:277:447:31
7:31
#11221
40K
24.85 mi14:02:203:11:587:436:31
7:37
#11050
25.2M
25.20 mi14:05:083:14:467:442:48
8:07
#10947
Finish
26.22 mi14:12:403:22:187:437:32
7:24
#10830
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi139193851385113257(Top 47%)3583(Top 29%)3583(Top 66%)
10K6.21 mi3.10 mi13269+6503505+3463505+34612656(Top 45%)3174(Top 26%)3174(Top 58%)
15K9.32 mi3.11 mi13256+133545-403545-4013257(Top 47%)3583(Top 29%)3583(Top 66%)
20K12.43 mi3.11 mi12865+3913367+1783367+17811919(Top 42%)2954(Top 24%)2954(Top 54%)
Half13.11 mi0.68 mi12874-93382-153382-1513356(Top 47%)3667(Top 30%)3667(Top 67%)
25K15.53 mi2.42 mi12626+2483259+1233259+12311487(Top 40%)2836(Top 23%)2836(Top 52%)
30K18.64 mi3.11 mi12203+4233099+1603099+16010572(Top 37%)2578(Top 21%)2578(Top 47%)
20M20.00 mi1.36 mi11985+2183028+713028+719953(Top 35%)2414(Top 20%)2414(Top 44%)
21M21.00 mi1.00 mi11755+2302936+922936+928819(Top 31%)2085(Top 17%)2085(Top 38%)
35K21.75 mi0.75 mi11688+672927+92927+910340(Top 36%)2765(Top 23%)2765(Top 51%)
23M23.00 mi1.25 mi11453+2352859+682859+688528(Top 30%)2059(Top 17%)2059(Top 38%)
24M24.00 mi1.00 mi11221+2322771+882771+887874(Top 28%)1823(Top 15%)1823(Top 33%)
40K24.85 mi0.85 mi11050+1712719+522719+527620(Top 27%)1825(Top 15%)1825(Top 33%)
25.2M25.20 mi0.35 mi10947+1032682+372682+376706(Top 24%)1534(Top 13%)1534(Top 28%)
Finish26.22 mi1.02 mi10830+1172648+342648+348469(Top 30%)2280(Top 19%)2280(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13257

Females

3583

F18-39

3583

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12656

Females

3174

F18-39

3174

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13257

Females

3583

F18-39

3583

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11919

Females

2954

F18-39

2954

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13356

Females

3667

F18-39

3667

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11487

Females

2836

F18-39

2836

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10572

Females

2578

F18-39

2578

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9953

Females

2414

F18-39

2414

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8819

Females

2085

F18-39

2085

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10340

Females

2765

F18-39

2765

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8528

Females

2059

F18-39

2059

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7874

Females

1823

F18-39

1823

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7620

Females

1825

F18-39

1825

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6706

Females

1534

F18-39

1534

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8469

Females

2280

F18-39

2280

Passing Analysis

Category:
Athletes Passed
3640
Passed By
551
Net Change
+3089
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13919
5K → 10K72171+650#13919#13269
10K → 15K206193+13#13269#13256
15K → 20K43847+391#13256#12865
20K → Half3241-9#12865#12874
Half → 25K28335+248#12874#12626
25K → 30K47552+423#12626#12203
30K → 20M23921+218#12203#11985
20M → 21M24515+230#11985#11755
21M → 35K9528+67#11755#11688
35K → 23M2416+235#11688#11453
23M → 24M24311+232#11453#11221
24M → 40K18110+171#11221#11050
40K → 25.2M1052+103#11050#10947
25.2M → Finish13619+117#10947#10830
TOTALS3640551+3089
📊

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