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BOSTON MARATHON 2025

Keila Krening

Bib: 23125•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:50/mi
27:27
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
55:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:22:53
↑ 67↓ 78
20K· 12.43 mi
9:35/mi
1:52:39
↑ 106↓ 860.1%
Half· 13.11 mi
8:59/mi
1:58:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:28/mi
2:21:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:52:39
↑ 181↓ 1480.2%
20M
9:55/mi
3:06:07
↑ 64↓ 500.2%
21M
10:27/mi
3:16:34
↑ 106↓ 241.6%
35K· 21.75 mi
9:24/mi
3:23:36
↑ 17↓ 861.7%
23M
9:26/mi
3:35:25
↑ 23↓ 630.6%
24M
9:23/mi
3:44:48
↓ 821.3%
40K· 24.85 mi
9:05/mi
3:52:34
↓ 200.3%
25.2M
10:06/mi
3:56:03
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
4:05:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:47
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:06:35
Pace9:39 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:4527:278:5027:27
8:50
-
10K
6.21 mi11:52:1955:018:5127:34
8:52
+0:02
15K
9.32 mi12:20:111:22:538:5427:52
8:58
+0:06
20K
12.43 mi12:49:571:52:399:0429:46
9:35
+0:37
Half
13.11 mi12:56:051:58:479:046:08
8:59
-0:36
25K
15.53 mi13:19:022:21:449:0722:57
9:28
+0:29
30K
18.64 mi13:49:572:52:399:1630:55
9:57
+0:29
20M
20.00 mi14:03:253:06:079:1813:28
9:55
-0:02
21M
21.00 mi14:13:523:16:349:2210:27
10:27
+0:32
35K
21.75 mi14:20:543:23:369:227:02
9:24
-1:03
23M
23.00 mi14:32:433:35:259:2211:49
9:26
+0:02
24M
24.00 mi14:42:063:44:489:229:23
9:23
-0:03
40K
24.85 mi14:49:523:52:349:217:46
9:05
-0:18
25.2M
25.20 mi14:53:213:56:039:223:29
10:06
+1:01
Finish
26.22 mi15:02:404:05:229:229:19
9:09
-0:57

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

8:50 /mi

Average Pace

9:22 /mi

Slowest Pace

10:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:03

76% of race

Time at Steady Pace

47:52

20% of race

Time at Slower Pace

10:27

4% of race

Average Pace: 9:21 /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 mi11:24:4527:278:5027:27
8:50
#21698
10K
6.21 mi11:52:1955:018:5127:34
8:52
#21729
15K
9.32 mi12:20:111:22:538:5427:52
8:58
#21784
20K
12.43 mi12:49:571:52:399:0429:46
9:35
#22221
Half
13.11 mi12:56:051:58:479:046:08
8:59
#22184
25K
15.53 mi13:19:022:21:449:0722:57
9:28
#22125
30K
18.64 mi13:49:572:52:399:1630:55
9:57
#22029
20M
20.00 mi14:03:253:06:079:1813:28
9:55
#21900
21M
21.00 mi14:13:523:16:349:2210:27
10:27
#21758
35K
21.75 mi14:20:543:23:369:227:02
9:24
#21682
23M
23.00 mi14:32:433:35:259:2211:49
9:26
#21488
24M
24.00 mi14:42:063:44:489:229:23
9:23
#21381
40K
24.85 mi14:49:523:52:349:217:46
9:05
#21218
25.2M
25.20 mi14:53:213:56:039:223:29
10:06
#21163
Finish
26.22 mi15:02:404:05:229:229:19
9:09
#21097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi216988460846021906(Top 77%)8490(Top 69%)8490(Top 468%)
10K6.21 mi3.10 mi21729-318459+18459+121769(Top 77%)8459(Top 69%)8459(Top 467%)
15K9.32 mi3.11 mi21784-558487-288487-2821906(Top 77%)8490(Top 69%)8490(Top 468%)
20K12.43 mi3.11 mi22221-4378712-2258712-22523151(Top 82%)9222(Top 75%)9222(Top 509%)
Half13.11 mi0.68 mi22184+378698+148698+1421813(Top 77%)8485(Top 69%)8485(Top 468%)
25K15.53 mi2.42 mi22125+598667+318667+3121748(Top 77%)8516(Top 70%)8516(Top 470%)
30K18.64 mi3.11 mi22029+968638+298638+2921462(Top 76%)8484(Top 69%)8484(Top 468%)
20M20.00 mi1.36 mi21900+1298582+568582+5620651(Top 73%)8170(Top 67%)8170(Top 451%)
21M21.00 mi1.00 mi21758+1428529+538529+5319868(Top 70%)7839(Top 64%)7839(Top 432%)
35K21.75 mi0.75 mi21682+768499+308499+3019985(Top 70%)7976(Top 65%)7976(Top 440%)
23M23.00 mi1.25 mi21488+1948423+768423+7618432(Top 65%)7206(Top 59%)7206(Top 397%)
24M24.00 mi1.00 mi21381+1078382+418382+4119190(Top 68%)7651(Top 63%)7651(Top 422%)
40K24.85 mi0.85 mi21218+1638323+598323+5916826(Top 59%)6506(Top 53%)6506(Top 359%)
25.2M25.20 mi0.35 mi21163+558298+258298+2517559(Top 62%)6913(Top 57%)6913(Top 381%)
Finish26.22 mi1.02 mi21097+668274+248274+2419734(Top 69%)8004(Top 65%)8004(Top 441%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21906

Females

8490

F45-49

8490

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21769

Females

8459

F45-49

8459

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21906

Females

8490

F45-49

8490

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23151

Females

9222

F45-49

9222

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21813

Females

8485

F45-49

8485

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21748

Females

8516

F45-49

8516

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21462

Females

8484

F45-49

8484

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20651

Females

8170

F45-49

8170

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19868

Females

7839

F45-49

7839

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19985

Females

7976

F45-49

7976

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18432

Females

7206

F45-49

7206

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

19190

Females

7651

F45-49

7651

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16826

Females

6506

F45-49

6506

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17559

Females

6913

F45-49

6913

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19734

Females

8004

F45-49

8004

Passing Analysis

Category:
Athletes Passed
2001
Passed By
1400
Net Change
+601
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21698
5K → 10K251282-31#21698#21729
10K → 15K182237-55#21729#21784
15K → 20K84521-437#21784#22221
20K → Half5518+37#22221#22184
Half → 25K174115+59#22184#22125
25K → 30K228132+96#22125#22029
30K → 20M15324+129#22029#21900
20M → 21M16725+142#21900#21758
21M → 35K848+76#21758#21682
35K → 23M20511+194#21682#21488
23M → 24M1169+107#21488#21381
24M → 40K1663+163#21381#21218
40K → 25.2M561+55#21218#21163
25.2M → Finish8014+66#21163#21097
TOTALS20011400+601
📊

Passing Visuals

Category:
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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