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BOSTON MARATHON 2025

Katrin Bergeron-Killough

Bib: 23931•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F50-54)
#0 / 1303
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:47
Rank: #20575
Start → 5K
26:47 | 8:37/mi
10K· 6.21 mi
52:38
Rank: #19652 (+923)
5K → 10K
25:51 | 8:19/mi
15K· 9.32 mi
1:18:18
Rank: #19031 (+621)
10K → 15K
25:40 | 8:16/mi
20K· 12.43 mi
1:44:23
Rank: #18656 (+375)
15K → 20K
26:05 | 8:24/mi
Half· 13.11 mi
1:50:04
Rank: #18615 (+41)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:10:23
Rank: #18220 (+395)
Half → 25K
20:19 | 8:23/mi
30K· 18.64 mi
2:37:43
Rank: #17848 (+372)
25K → 30K
27:20 | 8:48/mi
20M
2:49:52
Rank: #17740 (+108)
30K → 20M
12:09 | 8:56/mi
21M
2:59:28
Rank: #17670 (+70)
20M → 21M
9:36 | 9:36/mi
35K· 21.75 mi
3:05:45
Rank: #17552 (+118)
21M → 35K
6:17 | 8:24/mi
23M
3:17:11
Rank: #17499 (+53)
35K → 23M
11:26 | 9:08/mi
24M
3:26:18
Rank: #17510 (-11)
23M → 24M
9:07 | 9:07/mi
40K· 24.85 mi
3:34:21
Rank: #17542 (-32)
24M → 40K
8:03 | 9:25/mi
25.2M
3:37:59
Rank: #17575 (-33)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
3:47:21
Rank: #17697 (-122)
25.2M → Finish
9:22 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:04
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5926:478:3726:47
8:37
-
10K
6.21 mi11:52:5052:388:2825:51
8:19
-0:18
15K
9.32 mi12:18:301:18:188:2425:40
8:16
-0:03
20K
12.43 mi12:44:351:44:238:2426:05
8:24
+0:08
Half
13.11 mi12:50:161:50:048:245:41
8:20
-0:04
25K
15.53 mi13:10:352:10:238:2420:19
8:23
+0:03
30K
18.64 mi13:37:552:37:438:2827:20
8:48
+0:25
20M
20.00 mi13:50:042:49:528:3012:09
8:56
+0:08
21M
21.00 mi13:59:402:59:288:339:36
9:36
+0:40
35K
21.75 mi14:05:573:05:458:326:17
8:24
-1:12
23M
23.00 mi14:17:233:17:118:3411:26
9:08
+0:44
24M
24.00 mi14:26:303:26:188:369:07
9:07
-0:01
40K
24.85 mi14:34:333:34:218:378:03
9:25
+0:18
25.2M
25.20 mi14:38:113:37:598:393:38
10:32
+1:07
Finish
26.22 mi14:47:333:47:218:419:22
9:11
-1:21

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

8:16 /mi

Average Pace

8:41 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:53

48% of race

Time at Steady Pace

1:06:16

29% of race

Time at Slower Pace

51:12

23% of race

Average Pace: 8:40 /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 mi11:26:5926:478:3726:47
8:37
#20575
10K
6.21 mi11:52:5052:388:2825:51
8:19
#19652
15K
9.32 mi12:18:301:18:188:2425:40
8:16
#19031
20K
12.43 mi12:44:351:44:238:2426:05
8:24
#18656
Half
13.11 mi12:50:161:50:048:245:41
8:20
#18615
25K
15.53 mi13:10:352:10:238:2420:19
8:23
#18220
30K
18.64 mi13:37:552:37:438:2827:20
8:48
#17848
20M
20.00 mi13:50:042:49:528:3012:09
8:56
#17740
21M
21.00 mi13:59:402:59:288:339:36
9:36
#17670
35K
21.75 mi14:05:573:05:458:326:17
8:24
#17552
23M
23.00 mi14:17:233:17:118:3411:26
9:08
#17499
24M
24.00 mi14:26:303:26:188:369:07
9:07
#17510
40K
24.85 mi14:34:333:34:218:378:03
9:25
#17542
25.2M
25.20 mi14:38:113:37:598:393:38
10:32
#17575
Finish
26.22 mi14:47:333:47:218:419:22
9:11
#17697
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi205757845784517811(Top 63%)6212(Top 51%)6212(Top 477%)
10K6.21 mi3.10 mi19652+9237270+5757270+57518680(Top 66%)6695(Top 55%)6695(Top 514%)
15K9.32 mi3.11 mi19031+6216931+3396931+33917811(Top 63%)6212(Top 51%)6212(Top 477%)
20K12.43 mi3.11 mi18656+3756712+2196712+21917536(Top 62%)6072(Top 50%)6072(Top 466%)
Half13.11 mi0.68 mi18615+416690+226690+2218174(Top 64%)6424(Top 53%)6424(Top 493%)
25K15.53 mi2.42 mi18220+3956484+2066484+20616463(Top 58%)5574(Top 46%)5574(Top 428%)
30K18.64 mi3.11 mi17848+3726316+1686316+16816609(Top 58%)5812(Top 48%)5812(Top 446%)
20M20.00 mi1.36 mi17740+1086286+306286+3016498(Top 58%)5879(Top 48%)5879(Top 451%)
21M21.00 mi1.00 mi17670+706254+326254+3216574(Top 58%)6020(Top 49%)6020(Top 462%)
35K21.75 mi0.75 mi17552+1186217+376217+3714907(Top 52%)5196(Top 42%)5196(Top 399%)
23M23.00 mi1.25 mi17499+536222-56222-517022(Top 60%)6465(Top 53%)6465(Top 496%)
24M24.00 mi1.00 mi17510-116253-316253-3117977(Top 63%)7024(Top 57%)7024(Top 539%)
40K24.85 mi0.85 mi17542-326301-486301-4818358(Top 65%)7307(Top 60%)7307(Top 561%)
25.2M25.20 mi0.35 mi17575-336335-346335-3419161(Top 67%)7716(Top 63%)7716(Top 592%)
Finish26.22 mi1.02 mi17697-1226411-766411-7619917(Top 70%)8098(Top 66%)8098(Top 621%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

17811

Females

6212

F50-54

6212

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18680

Females

6695

F50-54

6695

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

17811

Females

6212

F50-54

6212

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17536

Females

6072

F50-54

6072

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18174

Females

6424

F50-54

6424

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16463

Females

5574

F50-54

5574

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16609

Females

5812

F50-54

5812

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16498

Females

5879

F50-54

5879

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16574

Females

6020

F50-54

6020

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

14907

Females

5196

F50-54

5196

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

17022

Females

6465

F50-54

6465

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

17977

Females

7024

F50-54

7024

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18358

Females

7307

F50-54

7307

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19161

Females

7716

F50-54

7716

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19917

Females

8098

F50-54

8098

Passing Analysis

Category:
Athletes Passed
3685
Passed By
807
Net Change
+2878
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20575
5K → 10K97552+923#20575#19652
10K → 15K64827+621#19652#19031
15K → 20K40934+375#19031#18656
20K → Half5918+41#18656#18615
Half → 25K41116+395#18615#18220
25K → 30K43361+372#18220#17848
30K → 20M17668+108#17848#17740
20M → 21M13464+70#17740#17670
21M → 35K1268+118#17670#17552
35K → 23M13784+53#17552#17499
23M → 24M6980-11#17499#17510
24M → 40K6193-32#17510#17542
40K → 25.2M2356-33#17542#17575
25.2M → Finish24146-122#17575#17697
TOTALS3685807+2878
📊

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