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BOSTON MARATHON 2025

Kayla Bertholf

Bib: 18665•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 44%
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
24:18
Rank: #15024
Start → 5K
24:18 | 7:49/mi
10K· 6.21 mi
48:40
Rank: #15082 (-58)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:13:10
Rank: #15086 (-4)
10K → 15K
24:30 | 7:53/mi
20K· 12.43 mi
1:37:41
Rank: #14757 (+329)
15K → 20K
24:31 | 7:53/mi
Half· 13.11 mi
1:43:03
Rank: #14752 (+5)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:02:39
Rank: #14688 (+64)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:29:01
Rank: #14682 (+6)
25K → 30K
26:22 | 8:29/mi
20M
2:41:05
Rank: #14788 (-106)
30K → 20M
12:04 | 8:53/mi
21M
2:51:53
Rank: #15292 (-504)
20M → 21M
10:48 | 10:48/mi
35K· 21.75 mi
2:58:12
Rank: #15255 (+37)
21M → 35K
6:19 | 8:27/mi
23M
3:10:34
Rank: #15625 (-370)
35K → 23M
12:22 | 9:53/mi
24M
3:19:25
Rank: #15637 (-12)
23M → 24M
8:51 | 8:51/mi
40K· 24.85 mi
3:27:31
Rank: #15740 (-103)
24M → 40K
8:06 | 9:28/mi
25.2M
3:31:06
Rank: #15795 (-55)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:40:29
Rank: #15994 (-199)
25.2M → Finish
9:23 | 9:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:03
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:57:26
Pace8:57 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2024:187:4924:18
7:49
-
10K
6.21 mi11:39:4248:407:5024:22
7:51
+0:02
15K
9.32 mi12:04:121:13:107:5124:30
7:53
+0:02
20K
12.43 mi12:28:431:37:417:5224:31
7:53
0:00
Half
13.11 mi12:34:051:43:037:525:22
7:52
-0:01
25K
15.53 mi12:53:412:02:397:5419:36
8:05
+0:13
30K
18.64 mi13:20:032:29:018:0026:22
8:29
+0:24
20M
20.00 mi13:32:072:41:058:0312:04
8:53
+0:24
21M
21.00 mi13:42:552:51:538:1110:48
10:48
+1:55
35K
21.75 mi13:49:142:58:128:126:19
8:27
-2:21
23M
23.00 mi14:01:363:10:348:1712:22
9:53
+1:26
24M
24.00 mi14:10:273:19:258:198:51
8:51
-1:02
40K
24.85 mi14:18:333:27:318:218:06
9:28
+0:37
25.2M
25.20 mi14:22:083:31:068:233:35
10:23
+0:55
Finish
26.22 mi14:31:313:40:298:259:23
9:12
-1:11

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

7:49 /mi

Average Pace

8:25 /mi

Slowest Pace

10:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:03

47% of race

Time at Steady Pace

1:13:12

33% of race

Time at Slower Pace

44:14

20% of race

Average Pace: 8:25 /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 mi11:15:2024:187:4924:18
7:49
#15024
10K
6.21 mi11:39:4248:407:5024:22
7:51
#15082
15K
9.32 mi12:04:121:13:107:5124:30
7:53
#15086
20K
12.43 mi12:28:431:37:417:5224:31
7:53
#14757
Half
13.11 mi12:34:051:43:037:525:22
7:52
#14752
25K
15.53 mi12:53:412:02:397:5419:36
8:05
#14688
30K
18.64 mi13:20:032:29:018:0026:22
8:29
#14682
20M
20.00 mi13:32:072:41:058:0312:04
8:53
#14788
21M
21.00 mi13:42:552:51:538:1110:48
10:48
#15292
35K
21.75 mi13:49:142:58:128:126:19
8:27
#15255
23M
23.00 mi14:01:363:10:348:1712:22
9:53
#15625
24M
24.00 mi14:10:273:19:258:198:51
8:51
#15637
40K
24.85 mi14:18:333:27:318:218:06
9:28
#15740
25.2M
25.20 mi14:22:083:31:068:233:35
10:23
#15795
Finish
26.22 mi14:31:313:40:298:259:23
9:12
#15994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150244545454515139(Top 53%)4663(Top 38%)4663(Top 85%)
10K6.21 mi3.10 mi15082-584592-474592-4715217(Top 54%)4675(Top 38%)4675(Top 85%)
15K9.32 mi3.11 mi15086-44608-164608-1615139(Top 53%)4663(Top 38%)4663(Top 85%)
20K12.43 mi3.11 mi14757+3294448+1604448+16014027(Top 49%)4115(Top 34%)4115(Top 75%)
Half13.11 mi0.68 mi14752+54443+54443+514890(Top 52%)4568(Top 37%)4568(Top 84%)
25K15.53 mi2.42 mi14688+644441+24441+214549(Top 51%)4514(Top 37%)4514(Top 83%)
30K18.64 mi3.11 mi14682+64494-534494-5314671(Top 52%)4725(Top 39%)4725(Top 86%)
20M20.00 mi1.36 mi14788-1064573-794573-7916126(Top 57%)5668(Top 46%)5668(Top 104%)
21M21.00 mi1.00 mi15292-5044890-3174890-31720841(Top 73%)8365(Top 68%)8365(Top 153%)
35K21.75 mi0.75 mi15255+374881+94881+915156(Top 53%)5318(Top 43%)5318(Top 97%)
23M23.00 mi1.25 mi15625-3705144-2635144-26320072(Top 71%)8084(Top 66%)8084(Top 148%)
24M24.00 mi1.00 mi15637-125174-305174-3016597(Top 58%)6259(Top 51%)6259(Top 114%)
40K24.85 mi0.85 mi15740-1035253-795253-7918616(Top 66%)7432(Top 61%)7432(Top 136%)
25.2M25.20 mi0.35 mi15795-555301-485301-4818619(Top 66%)7430(Top 61%)7430(Top 136%)
Finish26.22 mi1.02 mi15994-1995426-1255426-12519982(Top 70%)8130(Top 66%)8130(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

15139

Females

4663

F18-39

4663

5K→10K

3.1 - 6.2 mi

Top 54%
×5stories
+79ft-138ft

Overall

15217

Females

4675

F18-39

4675

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

15139

Females

4663

F18-39

4663

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

14027

Females

4115

F18-39

4115

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14890

Females

4568

F18-39

4568

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14549

Females

4514

F18-39

4514

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14671

Females

4725

F18-39

4725

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

16126

Females

5668

F18-39

5668

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20841

Females

8365

F18-39

8365

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

15156

Females

5318

F18-39

5318

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20072

Females

8084

F18-39

8084

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16597

Females

6259

F18-39

6259

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18616

Females

7432

F18-39

7432

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18619

Females

7430

F18-39

7430

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19982

Females

8130

F18-39

8130

Passing Analysis

Category:
Athletes Passed
1751
Passed By
2721
Net Change
-970
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15024
5K → 10K260318-58#15024#15082
10K → 15K214218-4#15082#15086
15K → 20K38354+329#15086#14757
20K → Half3530+5#14757#14752
Half → 25K197133+64#14752#14688
25K → 30K250244+6#14688#14682
30K → 20M99205-106#14682#14788
20M → 21M32536-504#14788#15292
21M → 35K8649+37#15292#15255
35K → 23M39409-370#15255#15625
23M → 24M6173-12#15625#15637
24M → 40K51154-103#15637#15740
40K → 25.2M2277-55#15740#15795
25.2M → Finish22221-199#15795#15994
TOTALS17512721-970
📊

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