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BOSTON MARATHON 2025

Eva Krchova

Bib: 7143•F

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Female)
#0 / 12228
Top 1%
Division (F18-39)
#0 / 5469
Top 2%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:51
Rank: #3061
Start → 5K
19:51 | 6:23/mi
10K· 6.21 mi
39:36
Rank: #2879 (+182)
5K → 10K
19:45 | 6:21/mi
15K· 9.32 mi
59:33
Rank: #2933 (-54)
10K → 15K
19:57 | 6:25/mi
20K· 12.43 mi
1:20:00
Rank: #3098 (-165)
15K → 20K
20:27 | 6:35/mi
Half· 13.11 mi
1:24:23
Rank: #3102 (-4)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:16
Rank: #3079 (+23)
Half → 25K
15:53 | 6:33/mi
30K· 18.64 mi
2:00:59
Rank: #2975 (+104)
25K → 30K
20:43 | 6:40/mi
20M
2:10:04
Rank: #2892 (+83)
30K → 20M
9:05 | 6:41/mi
21M
2:17:04
Rank: #2821 (+71)
20M → 21M
7:00 | 7:00/mi
35K· 21.75 mi
2:21:52
Rank: #2779 (+42)
21M → 35K
4:48 | 6:25/mi
23M
2:30:11
Rank: #2682 (+97)
35K → 23M
8:19 | 6:39/mi
24M
2:36:49
Rank: #2643 (+39)
23M → 24M
6:38 | 6:38/mi
40K· 24.85 mi
2:42:33
Rank: #2603 (+40)
24M → 40K
5:44 | 6:42/mi
25.2M
2:44:54
Rank: #2556 (+47)
40K → 25.2M
2:21 | 6:48/mi
Finish· 26.22 mi
2:51:49
Rank: #2595 (-39)
25.2M → Finish
6:55 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:23
Pace6:26 /mi
2nd Half
Distance13.11 mi
Time1:27:26
Pace6:40 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1119:516:2319:51
6:23
-
10K
6.21 mi10:44:5639:366:2219:45
6:21
-0:02
15K
9.32 mi11:04:5359:336:2319:57
6:25
+0:04
20K
12.43 mi11:25:201:20:006:2620:27
6:35
+0:10
Half
13.11 mi11:29:431:24:236:264:23
6:25
-0:10
25K
15.53 mi11:45:361:40:166:2715:53
6:33
+0:08
30K
18.64 mi12:06:192:00:596:2920:43
6:40
+0:07
20M
20.00 mi12:15:242:10:046:309:05
6:41
+0:01
21M
21.00 mi12:22:242:17:046:327:00
7:00
+0:19
35K
21.75 mi12:27:122:21:526:314:48
6:25
-0:35
23M
23.00 mi12:35:312:30:116:328:19
6:39
+0:14
24M
24.00 mi12:42:092:36:496:326:38
6:38
-0:01
40K
24.85 mi12:47:532:42:336:325:44
6:42
+0:04
25.2M
25.20 mi12:50:142:44:546:332:21
6:48
+0:06
Finish
26.22 mi12:57:092:51:496:336:55
6:48
0:00

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

6:21 /mi

Average Pace

6:33 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:49

96% of race

Time at Steady Pace

7:00

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:25:1119:516:2319:51
6:23
#3061
10K
6.21 mi10:44:5639:366:2219:45
6:21
#2879
15K
9.32 mi11:04:5359:336:2319:57
6:25
#2933
20K
12.43 mi11:25:201:20:006:2620:27
6:35
#3098
Half
13.11 mi11:29:431:24:236:264:23
6:25
#3102
25K
15.53 mi11:45:361:40:166:2715:53
6:33
#3079
30K
18.64 mi12:06:192:00:596:2920:43
6:40
#2975
20M
20.00 mi12:15:242:10:046:309:05
6:41
#2892
21M
21.00 mi12:22:242:17:046:327:00
7:00
#2821
35K
21.75 mi12:27:122:21:526:314:48
6:25
#2779
23M
23.00 mi12:35:312:30:116:328:19
6:39
#2682
24M
24.00 mi12:42:092:36:496:326:38
6:38
#2643
40K
24.85 mi12:47:532:42:336:325:44
6:42
#2603
25.2M
25.20 mi12:50:142:44:546:332:21
6:48
#2556
Finish
26.22 mi12:57:092:51:496:336:55
6:48
#2595
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 mi30611481483082(Top 11%)141(Top 1%)141(Top 3%)
10K6.21 mi3.10 mi2879+182130+18130+182788(Top 10%)127(Top 1%)127(Top 2%)
15K9.32 mi3.11 mi2933-54131-1131-13082(Top 11%)141(Top 1%)141(Top 3%)
20K12.43 mi3.11 mi3098-165139-8139-83604(Top 13%)189(Top 2%)189(Top 3%)
Half13.11 mi0.68 mi3102-41391393290(Top 12%)153(Top 1%)153(Top 3%)
25K15.53 mi2.42 mi3079+23138+1138+13179(Top 11%)159(Top 1%)159(Top 3%)
30K18.64 mi3.11 mi2975+104134+4134+42741(Top 10%)139(Top 1%)139(Top 3%)
20M20.00 mi1.36 mi2892+831341342415(Top 9%)128(Top 1%)128(Top 2%)
21M21.00 mi1.00 mi2821+71129+5129+52282(Top 8%)141(Top 1%)141(Top 3%)
35K21.75 mi0.75 mi2779+42130-1130-12130(Top 7%)127(Top 1%)127(Top 2%)
23M23.00 mi1.25 mi2682+97127+3127+32034(Top 7%)123(Top 1%)123(Top 2%)
24M24.00 mi1.00 mi2643+391271272674(Top 9%)209(Top 2%)209(Top 4%)
40K24.85 mi0.85 mi2603+40128-1128-12431(Top 9%)196(Top 2%)196(Top 4%)
25.2M25.20 mi0.35 mi2556+47127+1127+1951(Top 3%)76(Top 0.6%)76(Top 1%)
Finish26.22 mi1.02 mi2595-39133-6133-64476(Top 16%)691(Top 6%)691(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

3082

Females

141

F18-39

141

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2788

Females

127

F18-39

127

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

3082

Females

141

F18-39

141

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3604

Females

189

F18-39

189

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3290

Females

153

F18-39

153

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

3179

Females

159

F18-39

159

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2741

Females

139

F18-39

139

30K→20M

18.6 - 20.0 mi

Top 9%
×5stories
+64ft-50ft

Overall

2415

Females

128

F18-39

128

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2282

Females

141

F18-39

141

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2130

Females

127

F18-39

127

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

2034

Females

123

F18-39

123

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2674

Females

209

F18-39

209

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2431

Females

196

F18-39

196

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

951

Females

76

F18-39

76

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4476

Females

691

F18-39

691

Passing Analysis

Category:
Athletes Passed
1125
Passed By
659
Net Change
+466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3061
5K → 10K24260+182#3061#2879
10K → 15K66120-54#2879#2933
15K → 20K42207-165#2933#3098
20K → Half1418-4#3098#3102
Half → 25K6946+23#3102#3079
25K → 30K16763+104#3079#2975
30K → 20M9916+83#2975#2892
20M → 21M8514+71#2892#2821
21M → 35K5210+42#2821#2779
35K → 23M1036+97#2779#2682
23M → 24M6324+39#2682#2643
24M → 40K5313+40#2643#2603
40K → 25.2M492+47#2603#2556
25.2M → Finish2160-39#2556#2595
TOTALS1125659+466
📊

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