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BOSTON MARATHON 2025

Kristina Karelina

Bib: 27082•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:39
Rank: #24381
Start → 5K
29:39 | 9:33/mi
10K· 6.21 mi
58:49
Rank: #24090 (+291)
5K → 10K
29:10 | 9:23/mi
15K· 9.32 mi
1:26:00
Rank: #23204 (+886)
10K → 15K
27:11 | 8:45/mi
20K· 12.43 mi
1:53:11
Rank: #22390 (+814)
15K → 20K
27:11 | 8:45/mi
Half· 13.11 mi
1:59:10
Rank: #22306 (+84)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:20:15
Rank: #21690 (+616)
Half → 25K
21:05 | 8:42/mi
30K· 18.64 mi
2:48:22
Rank: #21020 (+670)
25K → 30K
28:07 | 9:03/mi
20M
3:00:25
Rank: #20647 (+373)
30K → 20M
12:03 | 8:52/mi
21M
3:09:30
Rank: #20313 (+334)
20M → 21M
9:05 | 9:05/mi
35K· 21.75 mi
3:15:49
Rank: #20153 (+160)
21M → 35K
6:19 | 8:27/mi
23M
3:26:32
Rank: #19817 (+336)
35K → 23M
10:43 | 8:34/mi
24M
3:34:42
Rank: #19538 (+279)
23M → 24M
8:10 | 8:10/mi
40K· 24.85 mi
3:41:58
Rank: #19320 (+218)
24M → 40K
7:16 | 8:30/mi
25.2M
3:45:09
Rank: #19206 (+114)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:53:06
Rank: #18963 (+243)
25.2M → Finish
7:57 | 7:48/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:59:10
Pace9:05 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:53:56
Pace8:41 /mi
📊Negative Split: 4.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1929:399:3329:39
9:33
-
10K
6.21 mi12:14:2958:499:2829:10
9:23
-0:10
15K
9.32 mi12:41:401:26:009:1427:11
8:45
-0:38
20K
12.43 mi13:08:511:53:119:0627:11
8:45
0:00
Half
13.11 mi13:14:501:59:109:055:59
8:46
+0:01
25K
15.53 mi13:35:552:20:159:0221:05
8:42
-0:04
30K
18.64 mi14:04:022:48:229:0228:07
9:03
+0:21
20M
20.00 mi14:16:053:00:259:0112:03
8:52
-0:11
21M
21.00 mi14:25:103:09:309:019:05
9:05
+0:13
35K
21.75 mi14:31:293:15:499:006:19
8:27
-0:38
23M
23.00 mi14:42:123:26:328:5910:43
8:34
+0:07
24M
24.00 mi14:50:223:34:428:578:10
8:10
-0:24
40K
24.85 mi14:57:383:41:588:567:16
8:30
+0:20
25.2M
25.20 mi15:00:493:45:098:563:11
9:14
+0:44
Finish
26.22 mi15:08:463:53:068:547:57
7:48
-1:26

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

7:48 /mi

Average Pace

8:54 /mi

Slowest Pace

9:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:42

13% of race

Time at Steady Pace

1:44:12

45% of race

Time at Slower Pace

1:39:12

43% of race

Average Pace: 8:53 /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 mi11:45:1929:399:3329:39
9:33
#24381
10K
6.21 mi12:14:2958:499:2829:10
9:23
#24090
15K
9.32 mi12:41:401:26:009:1427:11
8:45
#23204
20K
12.43 mi13:08:511:53:119:0627:11
8:45
#22390
Half
13.11 mi13:14:501:59:109:055:59
8:46
#22306
25K
15.53 mi13:35:552:20:159:0221:05
8:42
#21690
30K
18.64 mi14:04:022:48:229:0228:07
9:03
#21020
20M
20.00 mi14:16:053:00:259:0112:03
8:52
#20647
21M
21.00 mi14:25:103:09:309:019:05
9:05
#20313
35K
21.75 mi14:31:293:15:499:006:19
8:27
#20153
23M
23.00 mi14:42:123:26:328:5910:43
8:34
#19817
24M
24.00 mi14:50:223:34:428:578:10
8:10
#19538
40K
24.85 mi14:57:383:41:588:567:16
8:30
#19320
25.2M
25.20 mi15:00:493:45:098:563:11
9:14
#19206
Finish
26.22 mi15:08:463:53:068:547:57
7:48
#18963
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi243819891989120759(Top 73%)7860(Top 64%)7860(Top 144%)
10K6.21 mi3.10 mi24090+2919732+1599732+15923795(Top 84%)9561(Top 78%)9561(Top 175%)
15K9.32 mi3.11 mi23204+8869241+4919241+49120759(Top 73%)7860(Top 64%)7860(Top 144%)
20K12.43 mi3.11 mi22390+8148807+4348807+43419691(Top 69%)7311(Top 60%)7311(Top 134%)
Half13.11 mi0.68 mi22306+848769+388769+3820769(Top 73%)7895(Top 65%)7895(Top 144%)
25K15.53 mi2.42 mi21690+6168436+3338436+33318379(Top 65%)6644(Top 54%)6644(Top 121%)
30K18.64 mi3.11 mi21020+6708098+3388098+33817942(Top 63%)6549(Top 54%)6549(Top 120%)
20M20.00 mi1.36 mi20647+3737916+1827916+18216080(Top 57%)5648(Top 46%)5648(Top 103%)
21M21.00 mi1.00 mi20313+3347755+1617755+16114049(Top 49%)4671(Top 38%)4671(Top 85%)
35K21.75 mi0.75 mi20153+1607679+767679+7615194(Top 53%)5356(Top 44%)5356(Top 98%)
23M23.00 mi1.25 mi19817+3367519+1607519+16013712(Top 48%)4663(Top 38%)4663(Top 85%)
24M24.00 mi1.00 mi19538+2797382+1377382+13712409(Top 44%)4015(Top 33%)4015(Top 73%)
40K24.85 mi0.85 mi19320+2187274+1087274+10813488(Top 47%)4715(Top 39%)4715(Top 86%)
25.2M25.20 mi0.35 mi19206+1147228+467228+4613231(Top 47%)4650(Top 38%)4650(Top 85%)
Finish26.22 mi1.02 mi18963+2437107+1217107+12111504(Top 41%)3721(Top 30%)3721(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20759

Females

7860

F18-39

7860

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

23795

Females

9561

F18-39

9561

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20759

Females

7860

F18-39

7860

15K→20K

9.3 - 12.4 mi

Top 69%
×5stories
+106ft-86ft

Overall

19691

Females

7311

F18-39

7311

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20769

Females

7895

F18-39

7895

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18379

Females

6644

F18-39

6644

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

17942

Females

6549

F18-39

6549

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16080

Females

5648

F18-39

5648

20M→21M

20.0 - 21.0 mi

Top 49%
×8stories
+106ft-24ft

Overall

14049

Females

4671

F18-39

4671

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15194

Females

5356

F18-39

5356

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13712

Females

4663

F18-39

4663

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12409

Females

4015

F18-39

4015

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13488

Females

4715

F18-39

4715

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13231

Females

4650

F18-39

4650

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11504

Females

3721

F18-39

3721

Passing Analysis

Category:
Athletes Passed
5558
Passed By
140
Net Change
+5418
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24381
5K → 10K409118+291#24381#24090
10K → 15K8882+886#24090#23204
15K → 20K8140+814#23204#22390
20K → Half884+84#22390#22306
Half → 25K6171+616#22306#21690
25K → 30K6788+670#21690#21020
30K → 20M3730+373#21020#20647
20M → 21M3362+334#20647#20313
21M → 35K1600+160#20313#20153
35K → 23M3371+336#20153#19817
23M → 24M2812+279#19817#19538
24M → 40K2191+218#19538#19320
40K → 25.2M1140+114#19320#19206
25.2M → Finish2441+243#19206#18963
TOTALS5558140+5418
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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