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BOSTON MARATHON 2025

Karolína Zádrapová

Bib: 10396•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:57
Rank: #8367
Start → 5K
21:57 | 7:04/mi
10K· 6.21 mi
43:39
Rank: #8064 (+303)
5K → 10K
21:42 | 6:59/mi
15K· 9.32 mi
1:05:57
Rank: #8313 (-249)
10K → 15K
22:18 | 7:11/mi
20K· 12.43 mi
1:28:40
Rank: #8421 (-108)
15K → 20K
22:43 | 7:19/mi
Half· 13.11 mi
1:33:36
Rank: #8463 (-42)
20K → Half
4:56 | 7:14/mi
25K· 15.53 mi
1:51:45
Rank: #8627 (-164)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:16:27
Rank: #9011 (-384)
25K → 30K
24:42 | 7:57/mi
20M
2:27:20
Rank: #9125 (-114)
30K → 20M
10:53 | 8:01/mi
21M
2:35:57
Rank: #9210 (-85)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:41:46
Rank: #9225 (-15)
21M → 35K
5:49 | 7:46/mi
23M
2:51:48
Rank: #9231 (-6)
35K → 23M
10:02 | 8:01/mi
24M
2:59:43
Rank: #9294 (-63)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:06:41
Rank: #9337 (-43)
24M → 40K
6:58 | 8:09/mi
25.2M
3:09:50
Rank: #9382 (-45)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:18:16
Rank: #9606 (-224)
25.2M → Finish
8:26 | 8:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:36
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:44:40
Pace7:59 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1821:577:0421:57
7:04
-
10K
6.21 mi11:10:0043:397:0121:42
6:59
-0:05
15K
9.32 mi11:32:181:05:577:0522:18
7:11
+0:12
20K
12.43 mi11:55:011:28:407:0822:43
7:19
+0:08
Half
13.11 mi11:59:571:33:367:084:56
7:14
-0:05
25K
15.53 mi12:18:061:51:457:1218:09
7:29
+0:15
30K
18.64 mi12:42:482:16:277:1924:42
7:57
+0:28
20M
20.00 mi12:53:412:27:207:2210:53
8:01
+0:04
21M
21.00 mi13:02:182:35:577:268:37
8:37
+0:36
35K
21.75 mi13:08:072:41:467:265:49
7:46
-0:51
23M
23.00 mi13:18:092:51:487:2810:02
8:01
+0:15
24M
24.00 mi13:26:042:59:437:297:55
7:55
-0:06
40K
24.85 mi13:33:023:06:417:316:58
8:09
+0:14
25.2M
25.20 mi13:36:113:09:507:323:09
9:08
+0:59
Finish
26.22 mi13:44:373:18:167:348:26
8:17
-0:51

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

6:59 /mi

Average Pace

7:34 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:45

56% of race

Time at Steady Pace

1:06:19

33% of race

Time at Slower Pace

20:12

10% of race

Average Pace: 7:34 /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 mi10:48:1821:577:0421:57
7:04
#8367
10K
6.21 mi11:10:0043:397:0121:42
6:59
#8064
15K
9.32 mi11:32:181:05:577:0522:18
7:11
#8313
20K
12.43 mi11:55:011:28:407:0822:43
7:19
#8421
Half
13.11 mi11:59:571:33:367:084:56
7:14
#8463
25K
15.53 mi12:18:061:51:457:1218:09
7:29
#8627
30K
18.64 mi12:42:482:16:277:1924:42
7:57
#9011
20M
20.00 mi12:53:412:27:207:2210:53
8:01
#9125
21M
21.00 mi13:02:182:35:577:268:37
8:37
#9210
35K
21.75 mi13:08:072:41:467:265:49
7:46
#9225
23M
23.00 mi13:18:092:51:487:2810:02
8:01
#9231
24M
24.00 mi13:26:042:59:437:297:55
7:55
#9294
40K
24.85 mi13:33:023:06:417:316:58
8:09
#9337
25.2M
25.20 mi13:36:113:09:507:323:09
9:08
#9382
Finish
26.22 mi13:44:373:18:167:348:26
8:17
#9606
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8367112411248951(Top 32%)1410(Top 12%)1410(Top 26%)
10K6.21 mi3.10 mi8064+3031020+1041020+1047841(Top 28%)957(Top 8%)957(Top 17%)
15K9.32 mi3.11 mi8313-2491125-1051125-1058951(Top 32%)1410(Top 12%)1410(Top 26%)
20K12.43 mi3.11 mi8421-1081196-711196-719153(Top 32%)1595(Top 13%)1595(Top 29%)
Half13.11 mi0.68 mi8463-421208-121208-129470(Top 33%)1713(Top 14%)1713(Top 31%)
25K15.53 mi2.42 mi8627-1641290-821290-829860(Top 35%)2046(Top 17%)2046(Top 37%)
30K18.64 mi3.11 mi9011-3841520-2301520-23011034(Top 39%)2798(Top 23%)2798(Top 51%)
20M20.00 mi1.36 mi9125-1141591-711591-7110513(Top 37%)2687(Top 22%)2687(Top 49%)
21M21.00 mi1.00 mi9210-851667-761667-7611211(Top 39%)3191(Top 26%)3191(Top 58%)
35K21.75 mi0.75 mi9225-151704-371704-3710640(Top 37%)2911(Top 24%)2911(Top 53%)
23M23.00 mi1.25 mi9231-61744-401744-4010129(Top 36%)2796(Top 23%)2796(Top 51%)
24M24.00 mi1.00 mi9294-631797-531797-5310681(Top 38%)3122(Top 26%)3122(Top 57%)
40K24.85 mi0.85 mi9337-431861-641861-6411222(Top 40%)3506(Top 29%)3506(Top 64%)
25.2M25.20 mi0.35 mi9382-451898-371898-3712569(Top 44%)4248(Top 35%)4248(Top 78%)
Finish26.22 mi1.02 mi9606-2242049-1512049-15114771(Top 52%)5344(Top 44%)5344(Top 98%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8951

Females

1410

F18-39

1410

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7841

Females

957

F18-39

957

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8951

Females

1410

F18-39

1410

15K→20K

9.3 - 12.4 mi

Top 32%
×5stories
+106ft-86ft

Overall

9153

Females

1595

F18-39

1595

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

9470

Females

1713

F18-39

1713

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9860

Females

2046

F18-39

2046

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

11034

Females

2798

F18-39

2798

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10513

Females

2687

F18-39

2687

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

11211

Females

3191

F18-39

3191

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10640

Females

2911

F18-39

2911

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10129

Females

2796

F18-39

2796

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10681

Females

3122

F18-39

3122

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11222

Females

3506

F18-39

3506

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12569

Females

4248

F18-39

4248

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

14771

Females

5344

F18-39

5344

Passing Analysis

Category:
Athletes Passed
1316
Passed By
2555
Net Change
-1239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8367
5K → 10K404101+303#8367#8064
10K → 15K74323-249#8064#8313
15K → 20K135243-108#8313#8421
20K → Half1961-42#8421#8463
Half → 25K88252-164#8463#8627
25K → 30K115499-384#8627#9011
30K → 20M76190-114#9011#9125
20M → 21M69154-85#9125#9210
21M → 35K4964-15#9210#9225
35K → 23M111117-6#9225#9231
23M → 24M63126-63#9231#9294
24M → 40K63106-43#9294#9337
40K → 25.2M2873-45#9337#9382
25.2M → Finish22246-224#9382#9606
TOTALS13162555-1239
📊

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