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BOSTON MARATHON 2026

Courtney Koval

Bib: 27925•F

VA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
37:33
3.11 mi
Rank: #28829
Start → 5K
37:33 | 12:06/mi
10K
1:16:30
6.21 mi
Rank: #28846 (-17)
5K → 10K
38:57 | 12:33/mi
15K
1:57:05
9.32 mi
Rank: #28879 (-33)
10K → 15K
40:35 | 13:04/mi
20K
2:37:46
12.43 mi
Rank: #28849 (+30)
15K → 20K
40:41 | 13:06/mi
HALF
2:46:12
13.11 mi
Rank: #28832 (+17)
20K → HALF
8:26 | 12:23/mi
25K
3:18:41
15.53 mi
Rank: #28800 (+32)
HALF → 25K
32:29 | 13:24/mi
30K
4:01:14
18.64 mi
Rank: #28742 (+58)
25K → 30K
42:33 | 13:42/mi
20M
4:20:42
20.00 mi
Rank: #28723 (+19)
30K → 20M
19:28 | 14:20/mi
21M
4:35:36
21.00 mi
Rank: #28707 (+16)
20M → 21M
14:54 | 14:54/mi
35K
4:45:51
21.75 mi
Rank: #28691 (+16)
21M → 35K
10:15 | 13:43/mi
23M
5:04:42
23.00 mi
Rank: #28702 (-11)
35K → 23M
18:51 | 15:04/mi
24M
5:19:18
24.00 mi
Rank: #28712 (-10)
23M → 24M
14:36 | 14:36/mi
40K
5:33:16
24.85 mi
Rank: #28740 (-28)
24M → 40K
13:58 | 16:21/mi
25.2M
5:38:34
25.20 mi
Rank: #28742 (-2)
40K → 25.2M
5:18 | 15:23/mi
FINISH
5:51:45
26.22 mi
Rank: #28729 (+13)
25.2M → FINISH
13:11 | 12:57/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:46:12
Pace12:41 /mi
2nd Half
Distance13.11 mi
Time3:05:33
Pace14:10 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:3837:3312:0637:33
12:06
-
10K
6.21 mi12:38:351:16:3012:1938:57
12:33
+0:27
15K
9.32 mi13:19:101:57:0512:3440:35
13:04
+0:31
20K
12.43 mi13:59:512:37:4612:4240:41
13:06
+0:02
HALF
13.11 mi14:08:172:46:1212:418:26
12:23
-0:43
25K
15.53 mi14:40:463:18:4112:4832:29
13:24
+1:01
30K
18.64 mi15:23:194:01:1412:5742:33
13:42
+0:18
20M
20.00 mi15:42:474:20:4213:0319:28
14:20
+0:38
21M
21.00 mi15:57:414:35:3613:0814:54
14:54
+0:34
35K
21.75 mi16:07:564:45:5113:0910:15
13:43
-1:11
23M
23.00 mi16:26:475:04:4213:1518:51
15:04
+1:21
24M
24.00 mi16:41:235:19:1813:1914:36
14:36
-0:28
40K
24.85 mi16:55:215:33:1613:2513:58
16:21
+1:45
25.2M
25.20 mi17:00:395:38:3413:275:18
15:23
-0:58
FINISH
26.22 mi17:13:505:51:4513:2613:11
12:57
-2:26

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

12:06 /mi

Average Pace

13:26 /mi

Slowest Pace

16:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:59:23

51% of race

Time at Steady Pace

1:25:17

24% of race

Time at Slower Pace

1:27:05

25% of race

Average Pace: 13:25 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:59:3837:3312:0637:33
12:06
#28829
10K
6.21 mi12:38:351:16:3012:1938:57
12:33
#28846
15K
9.32 mi13:19:101:57:0512:3440:35
13:04
#28879
20K
12.43 mi13:59:512:37:4612:4240:41
13:06
#28849
HALF
13.11 mi14:08:172:46:1212:418:26
12:23
#28832
25K
15.53 mi14:40:463:18:4112:4832:29
13:24
#28800
30K
18.64 mi15:23:194:01:1412:5742:33
13:42
#28742
20M
20.00 mi15:42:474:20:4213:0319:28
14:20
#28723
21M
21.00 mi15:57:414:35:3613:0814:54
14:54
#28707
35K
21.75 mi16:07:564:45:5113:0910:15
13:43
#28691
23M
23.00 mi16:26:475:04:4213:1518:51
15:04
#28702
24M
24.00 mi16:41:235:19:1813:1914:36
14:36
#28712
40K
24.85 mi16:55:215:33:1613:2513:58
16:21
#28740
25.2M
25.20 mi17:00:395:38:3413:275:18
15:23
#28742
FINISH
26.22 mi17:13:505:51:4513:2613:11
12:57
#28729
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28829124471244728852(Top 99%)12466(Top 99%)12466(Top 218%)
10K6.21 mi3.10 mi28846-1712458-1112458-1128841(Top 99%)12459(Top 99%)12459(Top 218%)
15K9.32 mi3.11 mi28879-3312482-2412482-2428852(Top 99%)12466(Top 99%)12466(Top 218%)
20K12.43 mi3.11 mi28849+3012466+1612466+1628657(Top 99%)12356(Top 98%)12356(Top 216%)
HALF13.11 mi0.68 mi28832+1712455+1112455+1128477(Top 98%)12259(Top 97%)12259(Top 214%)
25K15.53 mi2.42 mi28800+3212429+2612429+2628442(Top 98%)12224(Top 97%)12224(Top 214%)
30K18.64 mi3.11 mi28742+5812397+3212397+3228191(Top 97%)12122(Top 96%)12122(Top 212%)
20M20.00 mi1.36 mi28723+1912382+1512382+1528310(Top 98%)12205(Top 97%)12205(Top 214%)
21M21.00 mi1.00 mi28707+1612379+312379+328004(Top 96%)12062(Top 96%)12062(Top 211%)
35K21.75 mi0.75 mi28691+1612371+812371+828190(Top 97%)12193(Top 97%)12193(Top 213%)
23M23.00 mi1.25 mi28702-1112382-1112382-1128658(Top 99%)12428(Top 99%)12428(Top 217%)
24M24.00 mi1.00 mi28712-1012393-1112393-1128592(Top 99%)12405(Top 99%)12405(Top 217%)
40K24.85 mi0.85 mi28740-2812408-1512408-1528810(Top 99%)12500(Top 99%)12500(Top 219%)
25.2M25.20 mi0.35 mi28742-212410-212410-228137(Top 97%)12198(Top 97%)12198(Top 213%)
FINISH26.22 mi1.02 mi28729+1312401+912401+928175(Top 97%)12207(Top 97%)12207(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21
+97ft-345ft

Overall

28852

Females

12466

F18-39

12466

5K→10K

3.1 - 6.2 mi

Top 99%
×5
+79ft-138ft

Overall

28841

Females

12459

F18-39

12459

10K→15K

6.2 - 9.3 mi

Top 99%
×3
+67ft-78ft

Overall

28852

Females

12466

F18-39

12466

15K→20K

9.3 - 12.4 mi

Top 99%
×5
+106ft-86ft

Overall

28657

Females

12356

F18-39

12356

20K→HALF

12.4 - 13.1 mi

Top 98%
×2
+19ft-37ft

Overall

28477

Females

12259

F18-39

12259

HALF→25K

13.1 - 15.5 mi

Top 98%
×4
+66ft-88ft

Overall

28442

Females

12224

F18-39

12224

25K→30K

15.5 - 18.6 mi

Top 97%
×9
+181ft-148ft

Overall

28191

Females

12122

F18-39

12122

30K→20M

18.6 - 20.0 mi

Top 98%
×5
+64ft-50ft

Overall

28310

Females

12205

F18-39

12205

20M→21M

20.0 - 21.0 mi

Top 96%
×8
+106ft-24ft

Overall

28004

Females

12062

F18-39

12062

21M→35K

21.0 - 21.8 mi

Top 97%
×7
+17ft-86ft

Overall

28190

Females

12193

F18-39

12193

35K→23M

21.8 - 23.0 mi

Top 99%
×5
+23ft-63ft

Overall

28658

Females

12428

F18-39

12428

23M→24M

23.0 - 24.0 mi

Top 99%
×6
+12ft-82ft

Overall

28592

Females

12405

F18-39

12405

24M→40K

24.0 - 24.9 mi

Top 99%
×1
+6ft-20ft

Overall

28810

Females

12500

F18-39

12500

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1
+13ft-16ft

Overall

28137

Females

12198

F18-39

12198

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
×2
+22ft-21ft

Overall

28175

Females

12207

F18-39

12207

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
303
Passed By
203
Net Change
+100
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28829
5K → 10K2441-17#28829#28846
10K → 15K740-33#28846#28879
15K → 20K4111+30#28879#28849
20K → HALF192+17#28849#28832
HALF → 25K386+32#28832#28800
25K → 30K624+58#28800#28742
30K → 20M289+19#28742#28723
20M → 21M2610+16#28723#28707
21M → 35K215+16#28707#28691
35K → 23M718-11#28691#28702
23M → 24M515-10#28702#28712
24M → 40K331-28#28712#28740
40K → 25.2M35-2#28740#28742
25.2M → FINISH196+13#28742#28729
TOTALS303203+100
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing