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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chandler Duff

Bib: 17316 •F •Age: N/A

OR

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0:00
0:00
/ mi
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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
25:45
3.11 mi
Rank: #18808
Start → 5K
25:45 | 8:18/mi
10K
51:11
6.21 mi
Rank: #18632 (+176)
5K → 10K
25:26 | 8:12/mi
15K
1:15:56
9.32 mi
Rank: #18056 (+576)
10K → 15K
24:45 | 7:58/mi
20K
1:41:06
12.43 mi
Rank: #17756 (+300)
15K → 20K
25:10 | 8:07/mi
HALF
1:46:32
13.11 mi
Rank: #17713 (+43)
20K → HALF
5:26 | 7:59/mi
25K
2:06:14
15.53 mi
Rank: #17467 (+246)
HALF → 25K
19:42 | 8:08/mi
30K
2:33:10
18.64 mi
Rank: #17492 (-25)
25K → 30K
26:56 | 8:41/mi
20M
2:45:39
20.00 mi
Rank: #17682 (-190)
30K → 20M
12:29 | 9:12/mi
21M
2:55:58
21.00 mi
Rank: #17973 (-291)
20M → 21M
10:19 | 10:19/mi
35K
3:03:35
21.75 mi
Rank: #18281 (-308)
21M → 35K
7:37 | 10:11/mi
23M
3:16:06
23.00 mi
Rank: #18595 (-314)
35K → 23M
12:31 | 10:01/mi
24M
3:26:20
24.00 mi
Rank: #18931 (-336)
23M → 24M
10:14 | 10:14/mi
40K
3:35:39
24.85 mi
Rank: #19297 (-366)
24M → 40K
9:19 | 10:54/mi
25.2M
3:39:47
25.20 mi
Rank: #19472 (-175)
40K → 25.2M
4:08 | 12:00/mi
FINISH
3:49:27
26.22 mi
Rank: #19626 (-154)
25.2M → FINISH
9:40 | 9:30/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:46:32
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time2:02:55
Pace9:23 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:1825:458:1825:45
8:18
-
10K
6.21 mi11:32:4451:118:1525:26
8:12
-0:06
15K
9.32 mi11:57:291:15:568:0924:45
7:58
-0:14
20K
12.43 mi12:22:391:41:068:0925:10
8:07
+0:09
HALF
13.11 mi12:28:051:46:328:085:26
7:59
-0:08
25K
15.53 mi12:47:472:06:148:0819:42
8:08
+0:09
30K
18.64 mi13:14:432:33:108:1326:56
8:41
+0:33
20M
20.00 mi13:27:122:45:398:1712:29
9:12
+0:31
21M
21.00 mi13:37:312:55:588:2310:19
10:19
+1:07
35K
21.75 mi13:45:083:03:358:277:37
10:11
-0:08
23M
23.00 mi13:57:393:16:068:3212:31
10:01
-0:10
24M
24.00 mi14:07:533:26:208:3610:14
10:14
+0:13
40K
24.85 mi14:17:123:35:398:419:19
10:54
+0:40
25.2M
25.20 mi14:21:203:39:478:444:08
12:00
+1:06
FINISH
26.22 mi14:31:003:49:278:469:40
9:30
-2:30

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

7:58 /mi

Average Pace

8:45 /mi

Slowest Pace

12:00 /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

2:06:14

55% of race

Time at Steady Pace

49:05

21% of race

Time at Slower Pace

54:08

24% of race

Average Pace: 8:45 /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 mi11:07:1825:458:1825:45
8:18
#18808
10K
6.21 mi11:32:4451:118:1525:26
8:12
#18632
15K
9.32 mi11:57:291:15:568:0924:45
7:58
#18056
20K
12.43 mi12:22:391:41:068:0925:10
8:07
#17756
HALF
13.11 mi12:28:051:46:328:085:26
7:59
#17713
25K
15.53 mi12:47:472:06:148:0819:42
8:08
#17467
30K
18.64 mi13:14:432:33:108:1326:56
8:41
#17492
20M
20.00 mi13:27:122:45:398:1712:29
9:12
#17682
21M
21.00 mi13:37:312:55:588:2310:19
10:19
#17973
35K
21.75 mi13:45:083:03:358:277:37
10:11
#18281
23M
23.00 mi13:57:393:16:068:3212:31
10:01
#18595
24M
24.00 mi14:07:533:26:208:3610:14
10:14
#18931
40K
24.85 mi14:17:123:35:398:419:19
10:54
#19297
25.2M
25.20 mi14:21:203:39:478:444:08
12:00
#19472
FINISH
26.22 mi14:31:003:49:278:469:40
9:30
#19626
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 mi188086981698116763(Top 58%)5770(Top 46%)5770(Top 101%)
10K6.21 mi3.10 mi18632+1766846+1356846+13518502(Top 64%)6745(Top 54%)6745(Top 118%)
15K9.32 mi3.11 mi18056+5766523+3236523+32316763(Top 58%)5770(Top 46%)5770(Top 101%)
20K12.43 mi3.11 mi17756+3006365+1586365+15816869(Top 58%)5863(Top 47%)5863(Top 103%)
HALF13.11 mi0.68 mi17713+436338+276338+2716996(Top 59%)5936(Top 47%)5936(Top 104%)
25K15.53 mi2.42 mi17467+2466194+1446194+14416322(Top 56%)5610(Top 45%)5610(Top 98%)
30K18.64 mi3.11 mi17492-256232-386232-3817862(Top 62%)6599(Top 52%)6599(Top 115%)
20M20.00 mi1.36 mi17682-1906373-1416373-14119827(Top 68%)7724(Top 61%)7724(Top 135%)
21M21.00 mi1.00 mi17973-2916559-1866559-18621461(Top 74%)8618(Top 69%)8618(Top 151%)
35K21.75 mi0.75 mi18281-3086747-1886747-18823617(Top 81%)9775(Top 78%)9775(Top 171%)
23M23.00 mi1.25 mi18595-3146936-1896936-18922138(Top 76%)9071(Top 72%)9071(Top 159%)
24M24.00 mi1.00 mi18931-3367151-2157151-21523440(Top 81%)9771(Top 78%)9771(Top 171%)
40K24.85 mi0.85 mi19297-3667371-2207371-22024046(Top 83%)10149(Top 81%)10149(Top 178%)
25.2M25.20 mi0.35 mi19472-1757467-967467-9624420(Top 84%)10345(Top 82%)10345(Top 181%)
FINISH26.22 mi1.02 mi19626-1547554-877554-8722301(Top 77%)9224(Top 73%)9224(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16763

Females

5770

F18-39

5770

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18502

Females

6745

F18-39

6745

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16763

Females

5770

F18-39

5770

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16869

Females

5863

F18-39

5863

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

16996

Females

5936

F18-39

5936

HALF→25K

13.1 - 15.5 mi

Top 56%
×4
+66ft-88ft

Overall

16322

Females

5610

F18-39

5610

25K→30K

15.5 - 18.6 mi

Top 62%
×9
+181ft-148ft

Overall

17862

Females

6599

F18-39

6599

30K→20M

18.6 - 20.0 mi

Top 68%
×5
+64ft-50ft

Overall

19827

Females

7724

F18-39

7724

20M→21M

20.0 - 21.0 mi

Top 74%
×8
+106ft-24ft

Overall

21461

Females

8618

F18-39

8618

21M→35K

21.0 - 21.8 mi

Top 81%
×7
+17ft-86ft

Overall

23617

Females

9775

F18-39

9775

35K→23M

21.8 - 23.0 mi

Top 76%
×5
+23ft-63ft

Overall

22138

Females

9071

F18-39

9071

23M→24M

23.0 - 24.0 mi

Top 81%
×6
+12ft-82ft

Overall

23440

Females

9771

F18-39

9771

24M→40K

24.0 - 24.9 mi

Top 83%
×1
+6ft-20ft

Overall

24046

Females

10149

F18-39

10149

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24420

Females

10345

F18-39

10345

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22301

Females

9224

F18-39

9224

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1971*
Passed By
2047
Net Change
-818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18808
5K → 10K373*197+176#18808#18632
10K → 15K601*25+576#18632#18056
15K → 20K338*38+300#18056#17756
20K → HALF5310+43#17756#17713
HALF → 25K279*33+246#17713#17467
25K → 30K181200-25#17467#17492
30K → 20M45200-190#17492#17682
20M → 21M17200-291#17682#17973
21M → 35K11200-308#17973#18281
35K → 23M33200-314#18281#18595
23M → 24M14200-336#18595#18931
24M → 40K11200-366#18931#19297
40K → 25.2M1176-175#19297#19472
25.2M → FINISH14168-154#19472#19626
TOTALS1971*2047-818

* 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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