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BOSTON MARATHON 2025

Holly Kareiva

Bib: 17057•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 25%
Division (F18-39)
#0 / 5469
Top 42%
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
7:23/mi
22:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
45:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:08:35
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:32:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:37:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:55:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:21:17
↑ 181↓ 1480.2%
20M
8:21/mi
2:32:38
↑ 64↓ 500.2%
21M
8:51/mi
2:41:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:56/mi
2:47:25
↑ 17↓ 861.7%
23M
8:17/mi
2:57:47
↑ 23↓ 630.6%
24M
8:07/mi
3:05:54
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:12:55
↓ 200.3%
25.2M
9:23/mi
3:16:09
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:24:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:06
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:47:21
Pace8:11 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:1922:577:2322:57
7:23
-
10K
6.21 mi11:36:0045:387:2122:41
7:18
-0:05
15K
9.32 mi11:58:571:08:357:2122:57
7:23
+0:05
20K
12.43 mi12:22:271:32:057:2523:30
7:34
+0:11
Half
13.11 mi12:27:281:37:067:245:01
7:21
-0:13
25K
15.53 mi12:46:031:55:417:2718:35
7:40
+0:19
30K
18.64 mi13:11:392:21:177:3525:36
8:14
+0:34
20M
20.00 mi13:23:002:32:387:3811:21
8:21
+0:07
21M
21.00 mi13:31:512:41:297:418:51
8:51
+0:30
35K
21.75 mi13:37:472:47:257:425:56
7:56
-0:55
23M
23.00 mi13:48:092:57:477:4410:22
8:17
+0:21
24M
24.00 mi13:56:163:05:547:458:07
8:07
-0:10
40K
24.85 mi14:03:173:12:557:467:01
8:12
+0:05
25.2M
25.20 mi14:06:313:16:097:473:14
9:23
+1:11
Finish
26.22 mi14:14:493:24:277:488:18
8:09
-1:14

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

7:18 /mi

Average Pace

7:48 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:41

57% of race

Time at Steady Pace

1:16:41

38% of race

Time at Slower Pace

12:05

6% of race

Average Pace: 7:48 /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 mi11:13:1922:577:2322:57
7:23
#11217
10K
6.21 mi11:36:0045:387:2122:41
7:18
#10729
15K
9.32 mi11:58:571:08:357:2122:57
7:23
#10709
20K
12.43 mi12:22:271:32:057:2523:30
7:34
#10850
Half
13.11 mi12:27:281:37:067:245:01
7:21
#10818
25K
15.53 mi12:46:031:55:417:2718:35
7:40
#10874
30K
18.64 mi13:11:392:21:177:3525:36
8:14
#11278
20M
20.00 mi13:23:002:32:387:3811:21
8:21
#11344
21M
21.00 mi13:31:512:41:297:418:51
8:51
#11373
35K
21.75 mi13:37:472:47:257:425:56
7:56
#11379
23M
23.00 mi13:48:092:57:477:4410:22
8:17
#11392
24M
24.00 mi13:56:163:05:547:458:07
8:07
#11374
40K
24.85 mi14:03:173:12:557:467:01
8:12
#11366
25.2M
25.20 mi14:06:313:16:097:473:14
9:23
#11393
Finish
26.22 mi14:14:493:24:277:488:18
8:09
#11492
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112172384238410770(Top 38%)2257(Top 18%)2257(Top 41%)
10K6.21 mi3.10 mi10729+4882174+2102174+21010372(Top 37%)2000(Top 16%)2000(Top 37%)
15K9.32 mi3.11 mi10709+202187-132187-1310770(Top 38%)2257(Top 18%)2257(Top 41%)
20K12.43 mi3.11 mi10850-1412263-762263-7611305(Top 40%)2636(Top 22%)2636(Top 48%)
Half13.11 mi0.68 mi10818+322247+162247+1610571(Top 37%)2236(Top 18%)2236(Top 41%)
25K15.53 mi2.42 mi10874-562319-722319-7211293(Top 40%)2742(Top 22%)2742(Top 50%)
30K18.64 mi3.11 mi11278-4042612-2932612-29313104(Top 46%)3882(Top 32%)3882(Top 71%)
20M20.00 mi1.36 mi11344-662692-802692-8012848(Top 45%)3877(Top 32%)3877(Top 71%)
21M21.00 mi1.00 mi11373-292746-542746-5412619(Top 44%)3929(Top 32%)3929(Top 72%)
35K21.75 mi0.75 mi11379-62775-292775-2911800(Top 42%)3539(Top 29%)3539(Top 65%)
23M23.00 mi1.25 mi11392-132831-562831-5611929(Top 42%)3696(Top 30%)3696(Top 68%)
24M24.00 mi1.00 mi11374+182848-172848-1712036(Top 42%)3815(Top 31%)3815(Top 70%)
40K24.85 mi0.85 mi11366+82886-382886-3811610(Top 41%)3702(Top 30%)3702(Top 68%)
25.2M25.20 mi0.35 mi11393-272923-372923-3713897(Top 49%)4940(Top 40%)4940(Top 90%)
Finish26.22 mi1.02 mi11492-993003-803003-8013911(Top 49%)4901(Top 40%)4901(Top 90%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10770

Females

2257

F18-39

2257

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

10372

Females

2000

F18-39

2000

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10770

Females

2257

F18-39

2257

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11305

Females

2636

F18-39

2636

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10571

Females

2236

F18-39

2236

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11293

Females

2742

F18-39

2742

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

13104

Females

3882

F18-39

3882

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12848

Females

3877

F18-39

3877

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12619

Females

3929

F18-39

3929

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11800

Females

3539

F18-39

3539

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11929

Females

3696

F18-39

3696

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

12036

Females

3815

F18-39

3815

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11610

Females

3702

F18-39

3702

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13897

Females

4940

F18-39

4940

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13911

Females

4901

F18-39

4901

Passing Analysis

Category:
Athletes Passed
1802
Passed By
2077
Net Change
-275
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11217
5K → 10K58193+488#11217#10729
10K → 15K172152+20#10729#10709
15K → 20K130271-141#10709#10850
20K → Half4816+32#10850#10818
Half → 25K145201-56#10818#10874
25K → 30K128532-404#10874#11278
30K → 20M97163-66#11278#11344
20M → 21M80109-29#11344#11373
21M → 35K5965-6#11373#11379
35K → 23M109122-13#11379#11392
23M → 24M9274+18#11392#11374
24M → 40K8375+8#11374#11366
40K → 25.2M3360-27#11366#11393
25.2M → Finish45144-99#11393#11492
TOTALS18022077-275
📊

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