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BOSTON MARATHON 2025

Korinna Garfield

Bib: 27387•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
27:53
Rank: #22315
Start → 5K
27:53 | 8:58/mi
10K· 6.21 mi
54:50
Rank: #21578 (+737)
5K → 10K
26:57 | 8:40/mi
15K· 9.32 mi
1:21:50
Rank: #21152 (+426)
10K → 15K
27:00 | 8:41/mi
20K· 12.43 mi
1:50:24
Rank: #21360 (-208)
15K → 20K
28:34 | 9:12/mi
Half· 13.11 mi
1:56:21
Rank: #21306 (+54)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:20:01
Rank: #21615 (-309)
Half → 25K
23:40 | 9:46/mi
30K· 18.64 mi
2:48:59
Rank: #21172 (+443)
25K → 30K
28:58 | 9:19/mi
20M
3:02:20
Rank: #21109 (+63)
30K → 20M
13:21 | 9:49/mi
21M
3:11:44
Rank: #20785 (+324)
20M → 21M
9:24 | 9:24/mi
35K· 21.75 mi
3:18:20
Rank: #20655 (+130)
21M → 35K
6:36 | 8:49/mi
23M
3:29:39
Rank: #20448 (+207)
35K → 23M
11:19 | 9:02/mi
24M
3:38:28
Rank: #20302 (+146)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:45:49
Rank: #20101 (+201)
24M → 40K
7:21 | 8:36/mi
25.2M
3:49:02
Rank: #19995 (+106)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:57:17
Rank: #19802 (+193)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:21
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:00:56
Pace9:14 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:4327:538:5827:53
8:58
-
10K
6.21 mi12:10:4054:508:4926:57
8:40
-0:18
15K
9.32 mi12:37:401:21:508:4727:00
8:41
+0:01
20K
12.43 mi13:06:141:50:248:5328:34
9:12
+0:31
Half
13.11 mi13:12:111:56:218:535:57
8:43
-0:29
25K
15.53 mi13:35:512:20:019:0123:40
9:46
+1:03
30K
18.64 mi14:04:492:48:599:0428:58
9:19
-0:27
20M
20.00 mi14:18:103:02:209:0713:21
9:49
+0:30
21M
21.00 mi14:27:343:11:449:089:24
9:24
-0:25
35K
21.75 mi14:34:103:18:209:076:36
8:49
-0:35
23M
23.00 mi14:45:293:29:399:0711:19
9:02
+0:13
24M
24.00 mi14:54:183:38:289:068:49
8:49
-0:13
40K
24.85 mi15:01:393:45:499:057:21
8:36
-0:13
25.2M
25.20 mi15:04:523:49:029:053:13
9:20
+0:44
Finish
26.22 mi15:13:073:57:179:038:15
8:06
-1:14

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

8:06 /mi

Average Pace

9:03 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:30

32% of race

Time at Steady Pace

54:37

23% of race

Time at Slower Pace

1:47:10

45% of race

Average Pace: 9:03 /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 mi11:43:4327:538:5827:53
8:58
#22315
10K
6.21 mi12:10:4054:508:4926:57
8:40
#21578
15K
9.32 mi12:37:401:21:508:4727:00
8:41
#21152
20K
12.43 mi13:06:141:50:248:5328:34
9:12
#21360
Half
13.11 mi13:12:111:56:218:535:57
8:43
#21306
25K
15.53 mi13:35:512:20:019:0123:40
9:46
#21615
30K
18.64 mi14:04:492:48:599:0428:58
9:19
#21172
20M
20.00 mi14:18:103:02:209:0713:21
9:49
#21109
21M
21.00 mi14:27:343:11:449:089:24
9:24
#20785
35K
21.75 mi14:34:103:18:209:076:36
8:49
#20655
23M
23.00 mi14:45:293:29:399:0711:19
9:02
#20448
24M
24.00 mi14:54:183:38:289:068:49
8:49
#20302
40K
24.85 mi15:01:393:45:499:057:21
8:36
#20101
25.2M
25.20 mi15:04:523:49:029:053:13
9:20
#19995
Finish
26.22 mi15:13:073:57:179:038:15
8:06
#19802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi223158805880520447(Top 72%)7680(Top 63%)7680(Top 140%)
10K6.21 mi3.10 mi21578+7378376+4298376+42920741(Top 73%)7883(Top 64%)7883(Top 144%)
15K9.32 mi3.11 mi21152+4268120+2568120+25620447(Top 72%)7680(Top 63%)7680(Top 140%)
20K12.43 mi3.11 mi21360-2088232-1128232-11221876(Top 77%)8521(Top 70%)8521(Top 156%)
Half13.11 mi0.68 mi21306+548203+298203+2920517(Top 72%)7765(Top 64%)7765(Top 142%)
25K15.53 mi2.42 mi21615-3098388-1858388-18522673(Top 80%)9020(Top 74%)9020(Top 165%)
30K18.64 mi3.11 mi21172+4438180+2088180+20819223(Top 68%)7242(Top 59%)7242(Top 132%)
20M20.00 mi1.36 mi21109+638169+118169+1120375(Top 72%)8003(Top 65%)8003(Top 146%)
21M21.00 mi1.00 mi20785+3248001+1688001+16815657(Top 55%)5550(Top 45%)5550(Top 101%)
35K21.75 mi0.75 mi20655+1307952+497952+4917413(Top 61%)6600(Top 54%)6600(Top 121%)
23M23.00 mi1.25 mi20448+2077859+937859+9316515(Top 58%)6186(Top 51%)6186(Top 113%)
24M24.00 mi1.00 mi20302+1467801+587801+5816457(Top 58%)6193(Top 51%)6193(Top 113%)
40K24.85 mi0.85 mi20101+2017717+847717+8414097(Top 50%)5034(Top 41%)5034(Top 92%)
25.2M25.20 mi0.35 mi19995+1067661+567661+5613737(Top 48%)4917(Top 40%)4917(Top 90%)
Finish26.22 mi1.02 mi19802+1937570+917570+9113612(Top 48%)4770(Top 39%)4770(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

20447

Females

7680

F18-39

7680

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20741

Females

7883

F18-39

7883

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

20447

Females

7680

F18-39

7680

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

21876

Females

8521

F18-39

8521

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

20517

Females

7765

F18-39

7765

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

22673

Females

9020

F18-39

9020

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19223

Females

7242

F18-39

7242

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20375

Females

8003

F18-39

8003

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

15657

Females

5550

F18-39

5550

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17413

Females

6600

F18-39

6600

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16515

Females

6186

F18-39

6186

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16457

Females

6193

F18-39

6193

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14097

Females

5034

F18-39

5034

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13737

Females

4917

F18-39

4917

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13612

Females

4770

F18-39

4770

Passing Analysis

Category:
Athletes Passed
3489
Passed By
976
Net Change
+2513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22315
5K → 10K79760+737#22315#21578
10K → 15K47145+426#21578#21152
15K → 20K142350-208#21152#21360
20K → Half7319+54#21360#21306
Half → 25K71380-309#21306#21615
25K → 30K47027+443#21615#21172
30K → 20M12865+63#21172#21109
20M → 21M3262+324#21109#20785
21M → 35K1377+130#20785#20655
35K → 23M2125+207#20655#20448
23M → 24M1526+146#20448#20302
24M → 40K2021+201#20302#20101
40K → 25.2M1082+106#20101#19995
25.2M → Finish2007+193#19995#19802
TOTALS3489976+2513
📊

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