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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Grace Dekoker

Bib: 15569 •F •Age: N/A

IL

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 39%
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
23:55
3.11 mi
Rank: #14552
Start → 5K
23:55 | 7:42/mi
10K
48:50
6.21 mi
Rank: #15979 (-1427)
5K → 10K
24:55 | 8:02/mi
15K
1:13:30
9.32 mi
Rank: #16137 (-158)
10K → 15K
24:40 | 7:57/mi
20K
1:38:03
12.43 mi
Rank: #15923 (+214)
15K → 20K
24:33 | 7:55/mi
HALF
1:43:17
13.11 mi
Rank: #15844 (+79)
20K → HALF
5:14 | 7:41/mi
25K
2:02:54
15.53 mi
Rank: #15867 (-23)
HALF → 25K
19:37 | 8:06/mi
30K
2:28:28
18.64 mi
Rank: #15713 (+154)
25K → 30K
25:34 | 8:14/mi
20M
2:39:49
20.00 mi
Rank: #15666 (+47)
30K → 20M
11:21 | 8:22/mi
21M
2:48:41
21.00 mi
Rank: #15613 (+53)
20M → 21M
8:52 | 8:52/mi
35K
2:54:28
21.75 mi
Rank: #15475 (+138)
21M → 35K
5:47 | 7:44/mi
23M
3:04:32
23.00 mi
Rank: #15313 (+162)
35K → 23M
10:04 | 8:03/mi
24M
3:12:17
24.00 mi
Rank: #15135 (+178)
23M → 24M
7:45 | 7:45/mi
40K
3:19:10
24.85 mi
Rank: #15038 (+97)
24M → 40K
6:53 | 8:04/mi
25.2M
3:22:10
25.20 mi
Rank: #14980 (+58)
40K → 25.2M
3:00 | 8:42/mi
FINISH
3:30:03
26.22 mi
Rank: #14943 (+37)
25.2M → FINISH
7:53 | 7:45/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:17
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:46:46
Pace8:09 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2223:557:4223:55
7:42
-
10K
6.21 mi11:21:1748:507:5224:55
8:02
+0:20
15K
9.32 mi11:45:571:13:307:5424:40
7:57
-0:05
20K
12.43 mi12:10:301:38:037:5424:33
7:55
-0:02
HALF
13.11 mi12:15:441:43:177:535:14
7:41
-0:14
25K
15.53 mi12:35:212:02:547:5519:37
8:06
+0:25
30K
18.64 mi13:00:552:28:287:5825:34
8:14
+0:08
20M
20.00 mi13:12:162:39:498:0011:21
8:22
+0:08
21M
21.00 mi13:21:082:48:418:028:52
8:52
+0:30
35K
21.75 mi13:26:552:54:288:025:47
7:44
-1:08
23M
23.00 mi13:36:593:04:328:0210:04
8:03
+0:19
24M
24.00 mi13:44:443:12:178:017:45
7:45
-0:18
40K
24.85 mi13:51:373:19:108:016:53
8:04
+0:19
25.2M
25.20 mi13:54:373:22:108:023:00
8:42
+0:38
FINISH
26.22 mi14:02:303:30:038:027:53
7:45
-0:57

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

7:41 /mi

Average Pace

8:01 /mi

Slowest Pace

8:52 /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

3:18:11

94% of race

Time at Steady Pace

11:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi10:56:2223:557:4223:55
7:42
#14552
10K
6.21 mi11:21:1748:507:5224:55
8:02
#15979
15K
9.32 mi11:45:571:13:307:5424:40
7:57
#16137
20K
12.43 mi12:10:301:38:037:5424:33
7:55
#15923
HALF
13.11 mi12:15:441:43:177:535:14
7:41
#15844
25K
15.53 mi12:35:212:02:547:5519:37
8:06
#15867
30K
18.64 mi13:00:552:28:287:5825:34
8:14
#15713
20M
20.00 mi13:12:162:39:498:0011:21
8:22
#15666
21M
21.00 mi13:21:082:48:418:028:52
8:52
#15613
35K
21.75 mi13:26:552:54:288:025:47
7:44
#15475
23M
23.00 mi13:36:593:04:328:0210:04
8:03
#15313
24M
24.00 mi13:44:443:12:178:017:45
7:45
#15135
40K
24.85 mi13:51:373:19:108:016:53
8:04
#15038
25.2M
25.20 mi13:54:373:22:108:023:00
8:42
#14980
FINISH
26.22 mi14:02:303:30:038:027:53
7:45
#14943
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 mi145524408440816530(Top 57%)5628(Top 45%)5628(Top 98%)
10K6.21 mi3.10 mi15979-14275320-9125320-91217395(Top 60%)6139(Top 49%)6139(Top 107%)
15K9.32 mi3.11 mi16137-1585416-965416-9616530(Top 57%)5628(Top 45%)5628(Top 98%)
20K12.43 mi3.11 mi15923+2145301+1155301+11515351(Top 53%)5003(Top 40%)5003(Top 88%)
HALF13.11 mi0.68 mi15844+795259+425259+4214643(Top 50%)4530(Top 36%)4530(Top 79%)
25K15.53 mi2.42 mi15867-235284-255284-2516057(Top 55%)5453(Top 43%)5453(Top 95%)
30K18.64 mi3.11 mi15713+1545230+545230+5415131(Top 52%)5043(Top 40%)5043(Top 88%)
20M20.00 mi1.36 mi15666+475218+125218+1215275(Top 53%)5229(Top 42%)5229(Top 91%)
21M21.00 mi1.00 mi15613+535208+105208+1015389(Top 53%)5348(Top 43%)5348(Top 94%)
35K21.75 mi0.75 mi15475+1385148+605148+6012616(Top 43%)3890(Top 31%)3890(Top 68%)
23M23.00 mi1.25 mi15313+1625072+765072+7612795(Top 44%)4034(Top 32%)4034(Top 71%)
24M24.00 mi1.00 mi15135+1784989+834989+8311957(Top 41%)3692(Top 29%)3692(Top 65%)
40K24.85 mi0.85 mi15038+974953+364953+3612890(Top 44%)4273(Top 34%)4273(Top 75%)
25.2M25.20 mi0.35 mi14980+584932+214932+2112973(Top 45%)4361(Top 35%)4361(Top 76%)
FINISH26.22 mi1.02 mi14943+374924+84924+813321(Top 46%)4565(Top 36%)4565(Top 80%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16530

Females

5628

F18-39

5628

5K→10K

3.1 - 6.2 mi

Top 60%
×5
+79ft-138ft

Overall

17395

Females

6139

F18-39

6139

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16530

Females

5628

F18-39

5628

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15351

Females

5003

F18-39

5003

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14643

Females

4530

F18-39

4530

HALF→25K

13.1 - 15.5 mi

Top 55%
×4
+66ft-88ft

Overall

16057

Females

5453

F18-39

5453

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15131

Females

5043

F18-39

5043

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15275

Females

5229

F18-39

5229

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15389

Females

5348

F18-39

5348

21M→35K

21.0 - 21.8 mi

Top 43%
×7
+17ft-86ft

Overall

12616

Females

3890

F18-39

3890

35K→23M

21.8 - 23.0 mi

Top 44%
×5
+23ft-63ft

Overall

12795

Females

4034

F18-39

4034

23M→24M

23.0 - 24.0 mi

Top 41%
×6
+12ft-82ft

Overall

11957

Females

3692

F18-39

3692

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12890

Females

4273

F18-39

4273

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1
+13ft-16ft

Overall

12973

Females

4361

F18-39

4361

25.2M→FINISH

25.2 - 26.2 mi

Top 46%
×2
+22ft-21ft

Overall

13321

Females

4565

F18-39

4565

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1983*
Passed By
1003
Net Change
-391
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14552
5K → 10K37200-1427#14552#15979
10K → 15K149200-158#15979#16137
15K → 20K303*89+214#16137#15923
20K → HALF856+79#15923#15844
HALF → 25K132155-23#15844#15867
25K → 30K278*124+154#15867#15713
30K → 20M10255+47#15713#15666
20M → 21M12370+53#15666#15613
21M → 35K1468+138#15613#15475
35K → 23M18119+162#15475#15313
23M → 24M1879+178#15313#15135
24M → 40K12124+97#15135#15038
40K → 25.2M624+58#15038#14980
25.2M → FINISH7740+37#14980#14943
TOTALS1983*1003-391

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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

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OTQ

Olympic Trials Qualifying analysis available

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