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BOSTON MARATHON 2025

Caroline Bialke

Bib: 7404•F

OH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 7%
Division (F18-39)
#0 / 5469
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #4344
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
41:01
Rank: #4521 (-177)
5K → 10K
20:37 | 6:38/mi
15K· 9.32 mi
1:01:47
Rank: #4625 (-104)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:23:59
Rank: #5559 (-934)
15K → 20K
22:12 | 7:09/mi
Half· 13.11 mi
1:28:42
Rank: #5642 (-83)
20K → Half
4:43 | 6:55/mi
25K· 15.53 mi
1:46:06
Rank: #5986 (-344)
Half → 25K
17:24 | 7:11/mi
30K· 18.64 mi
2:09:28
Rank: #6297 (-311)
25K → 30K
23:22 | 7:31/mi
20M
2:20:35
Rank: #6566 (-269)
30K → 20M
11:07 | 8:11/mi
21M
2:28:44
Rank: #6597 (-31)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:34:48
Rank: #6745 (-148)
21M → 35K
6:04 | 8:07/mi
23M
2:44:17
Rank: #6693 (+52)
35K → 23M
9:29 | 7:34/mi
24M
2:51:49
Rank: #6699 (-6)
23M → 24M
7:32 | 7:32/mi
40K· 24.85 mi
2:58:26
Rank: #6713 (-14)
24M → 40K
6:37 | 7:44/mi
25.2M
3:01:19
Rank: #6715 (-2)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:09:00
Rank: #6772 (-57)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:42
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:40:18
Pace7:39 /mi
📊Positive Split: 13.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:3120:246:3420:24
6:34
-
10K
6.21 mi10:48:0841:016:3620:37
6:38
+0:04
15K
9.32 mi11:08:541:01:476:3820:46
6:41
+0:03
20K
12.43 mi11:31:061:23:596:4522:12
7:09
+0:28
Half
13.11 mi11:35:491:28:426:464:43
6:55
-0:14
25K
15.53 mi11:53:131:46:066:5017:24
7:11
+0:16
30K
18.64 mi12:16:352:09:286:5723:22
7:31
+0:20
20M
20.00 mi12:27:422:20:357:0211:07
8:11
+0:40
21M
21.00 mi12:35:512:28:447:058:09
8:09
-0:02
35K
21.75 mi12:41:552:34:487:076:04
8:07
-0:02
23M
23.00 mi12:51:242:44:177:099:29
7:34
-0:33
24M
24.00 mi12:58:562:51:497:107:32
7:32
-0:02
40K
24.85 mi13:05:332:58:267:116:37
7:44
+0:12
25.2M
25.20 mi13:08:263:01:197:122:53
8:22
+0:38
Finish
26.22 mi13:16:073:09:007:137:41
7:32
-0:50

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

6:34 /mi

Average Pace

7:13 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:06

56% of race

Time at Steady Pace

54:41

29% of race

Time at Slower Pace

28:13

15% of race

Average Pace: 7:12 /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 mi10:27:3120:246:3420:24
6:34
#4344
10K
6.21 mi10:48:0841:016:3620:37
6:38
#4521
15K
9.32 mi11:08:541:01:476:3820:46
6:41
#4625
20K
12.43 mi11:31:061:23:596:4522:12
7:09
#5559
Half
13.11 mi11:35:491:28:426:464:43
6:55
#5642
25K
15.53 mi11:53:131:46:066:5017:24
7:11
#5986
30K
18.64 mi12:16:352:09:286:5723:22
7:31
#6297
20M
20.00 mi12:27:422:20:357:0211:07
8:11
#6566
21M
21.00 mi12:35:512:28:447:058:09
8:09
#6597
35K
21.75 mi12:41:552:34:487:076:04
8:07
#6745
23M
23.00 mi12:51:242:44:177:099:29
7:34
#6693
24M
24.00 mi12:58:562:51:497:107:32
7:32
#6699
40K
24.85 mi13:05:332:58:267:116:37
7:44
#6713
25.2M
25.20 mi13:08:263:01:197:122:53
8:22
#6715
Finish
26.22 mi13:16:073:09:007:137:41
7:32
#6772
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi43442562564962(Top 17%)338(Top 3%)338(Top 6%)
10K6.21 mi3.10 mi4521-177265-9265-94771(Top 17%)298(Top 2%)298(Top 5%)
15K9.32 mi3.11 mi4625-104285-20285-204962(Top 17%)338(Top 3%)338(Top 6%)
20K12.43 mi3.11 mi5559-934430-145430-1457798(Top 27%)1031(Top 8%)1031(Top 19%)
Half13.11 mi0.68 mi5642-83448-18448-187067(Top 25%)792(Top 6%)792(Top 14%)
25K15.53 mi2.42 mi5986-344528-80528-807439(Top 26%)1011(Top 8%)1011(Top 18%)
30K18.64 mi3.11 mi6297-311614-86614-867898(Top 28%)1352(Top 11%)1352(Top 25%)
20M20.00 mi1.36 mi6566-269695-81695-8111683(Top 41%)3281(Top 27%)3281(Top 60%)
21M21.00 mi1.00 mi6597-31725-30725-308273(Top 29%)1832(Top 15%)1832(Top 33%)
35K21.75 mi0.75 mi6745-148777-52777-5212993(Top 46%)4141(Top 34%)4141(Top 76%)
23M23.00 mi1.25 mi6693+52796-19796-197090(Top 25%)1434(Top 12%)1434(Top 26%)
24M24.00 mi1.00 mi6699-6822-26822-267954(Top 28%)1839(Top 15%)1839(Top 34%)
40K24.85 mi0.85 mi6713-14851-29851-298359(Top 29%)2142(Top 18%)2142(Top 39%)
25.2M25.20 mi0.35 mi6715-2873-22873-227984(Top 28%)2042(Top 17%)2042(Top 37%)
Finish26.22 mi1.02 mi6772-57911-38911-389493(Top 33%)2748(Top 22%)2748(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4962

Females

338

F18-39

338

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4771

Females

298

F18-39

298

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4962

Females

338

F18-39

338

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7798

Females

1031

F18-39

1031

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

7067

Females

792

F18-39

792

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

7439

Females

1011

F18-39

1011

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7898

Females

1352

F18-39

1352

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

11683

Females

3281

F18-39

3281

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8273

Females

1832

F18-39

1832

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

12993

Females

4141

F18-39

4141

35K→23M

21.8 - 23.0 mi

Top 25%
×5stories
+23ft-63ft

Overall

7090

Females

1434

F18-39

1434

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7954

Females

1839

F18-39

1839

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

8359

Females

2142

F18-39

2142

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7984

Females

2042

F18-39

2042

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9493

Females

2748

F18-39

2748

Passing Analysis

Category:
Athletes Passed
768
Passed By
3196
Net Change
-2428
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4344
5K → 10K81258-177#4344#4521
10K → 15K72176-104#4521#4625
15K → 20K15949-934#4625#5559
20K → Half588-83#5559#5642
Half → 25K64408-344#5642#5986
25K → 30K95406-311#5986#6297
30K → 20M41310-269#6297#6566
20M → 21M5788-31#6566#6597
21M → 35K16164-148#6597#6745
35K → 23M11866+52#6745#6693
23M → 24M6773-6#6693#6699
24M → 40K6276-14#6699#6713
40K → 25.2M3840-2#6713#6715
25.2M → Finish3794-57#6715#6772
TOTALS7683196-2428
📊

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