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BOSTON MARATHON 2026

Kathryn Burr

Bib: 27579•F

MA

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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
27:07
3.11 mi
Rank: #21349
Start → 5K
27:07 | 8:44/mi
10K
52:52
6.21 mi
Rank: #20206 (+1143)
5K → 10K
25:45 | 8:18/mi
15K
1:18:31
9.32 mi
Rank: #19709 (+497)
10K → 15K
25:39 | 8:16/mi
20K
1:44:57
12.43 mi
Rank: #19615 (+94)
15K → 20K
26:26 | 8:31/mi
HALF
1:50:47
13.11 mi
Rank: #19655 (-40)
20K → HALF
5:50 | 8:34/mi
25K
2:12:00
15.53 mi
Rank: #19702 (-47)
HALF → 25K
21:13 | 8:45/mi
30K
2:40:19
18.64 mi
Rank: #19786 (-84)
25K → 30K
28:19 | 9:07/mi
20M
2:52:54
20.00 mi
Rank: #19821 (-35)
30K → 20M
12:35 | 9:16/mi
21M
3:02:49
21.00 mi
Rank: #19850 (-29)
20M → 21M
9:55 | 9:55/mi
35K
3:09:25
21.75 mi
Rank: #19814 (+36)
21M → 35K
6:36 | 8:50/mi
23M
3:20:52
23.00 mi
Rank: #19786 (+28)
35K → 23M
11:27 | 9:09/mi
24M
3:30:02
24.00 mi
Rank: #19813 (-27)
23M → 24M
9:10 | 9:10/mi
40K
3:37:55
24.85 mi
Rank: #19794 (+19)
24M → 40K
7:53 | 9:14/mi
25.2M
3:41:17
25.20 mi
Rank: #19789 (+5)
40K → 25.2M
3:22 | 9:46/mi
FINISH
3:50:23
26.22 mi
Rank: #19805 (-16)
25.2M → FINISH
9:06 | 8:56/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:50:47
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:59:36
Pace9:08 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0327:078:4427:07
8:44
-
10K
6.21 mi12:15:4852:528:3125:45
8:18
-0:26
15K
9.32 mi12:41:271:18:318:2625:39
8:16
-0:02
20K
12.43 mi13:07:531:44:578:2726:26
8:31
+0:15
HALF
13.11 mi13:13:431:50:478:285:50
8:34
+0:03
25K
15.53 mi13:34:562:12:008:3021:13
8:45
+0:11
30K
18.64 mi14:03:152:40:198:3728:19
9:07
+0:22
20M
20.00 mi14:15:502:52:548:3912:35
9:16
+0:09
21M
21.00 mi14:25:453:02:498:439:55
9:55
+0:39
35K
21.75 mi14:32:213:09:258:436:36
8:50
-1:05
23M
23.00 mi14:43:483:20:528:4511:27
9:09
+0:19
24M
24.00 mi14:52:583:30:028:469:10
9:10
+0:01
40K
24.85 mi15:00:513:37:558:477:53
9:14
+0:04
25.2M
25.20 mi15:04:133:41:178:473:22
9:46
+0:32
FINISH
26.22 mi15:13:193:50:238:489:06
8:56
-0:50

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

8:16 /mi

Average Pace

8:48 /mi

Slowest Pace

9:55 /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

2:27:42

64% of race

Time at Steady Pace

1:09:24

30% of race

Time at Slower Pace

13:17

6% of race

Average Pace: 8:47 /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 mi11:50:0327:078:4427:07
8:44
#21349
10K
6.21 mi12:15:4852:528:3125:45
8:18
#20206
15K
9.32 mi12:41:271:18:318:2625:39
8:16
#19709
20K
12.43 mi13:07:531:44:578:2726:26
8:31
#19615
HALF
13.11 mi13:13:431:50:478:285:50
8:34
#19655
25K
15.53 mi13:34:562:12:008:3021:13
8:45
#19702
30K
18.64 mi14:03:152:40:198:3728:19
9:07
#19786
20M
20.00 mi14:15:502:52:548:3912:35
9:16
#19821
21M
21.00 mi14:25:453:02:498:439:55
9:55
#19850
35K
21.75 mi14:32:213:09:258:436:36
8:50
#19814
23M
23.00 mi14:43:483:20:528:4511:27
9:09
#19786
24M
24.00 mi14:52:583:30:028:469:10
9:10
#19813
40K
24.85 mi15:00:513:37:558:477:53
9:14
#19794
25.2M
25.20 mi15:04:133:41:178:473:22
9:46
#19789
FINISH
26.22 mi15:13:193:50:238:489:06
8:56
#19805
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 mi213498363836318726(Top 65%)6883(Top 55%)6883(Top 120%)
10K6.21 mi3.10 mi20206+11437716+6477716+64719116(Top 66%)7090(Top 56%)7090(Top 124%)
15K9.32 mi3.11 mi19709+4977457+2597457+25918726(Top 65%)6883(Top 55%)6883(Top 120%)
20K12.43 mi3.11 mi19615+947406+517406+5119367(Top 67%)7281(Top 58%)7281(Top 127%)
HALF13.11 mi0.68 mi19655-407430-247430-2420619(Top 71%)7919(Top 63%)7919(Top 139%)
25K15.53 mi2.42 mi19702-477471-417471-4119978(Top 69%)7642(Top 61%)7642(Top 134%)
30K18.64 mi3.11 mi19786-847539-687539-6820141(Top 69%)7807(Top 62%)7807(Top 137%)
20M20.00 mi1.36 mi19821-357576-377576-3720141(Top 69%)7881(Top 63%)7881(Top 138%)
21M21.00 mi1.00 mi19850-297609-337609-3320160(Top 69%)7938(Top 63%)7938(Top 139%)
35K21.75 mi0.75 mi19814+367599+107599+1019273(Top 66%)7587(Top 60%)7587(Top 133%)
23M23.00 mi1.25 mi19786+287606-77606-719199(Top 66%)7571(Top 60%)7571(Top 132%)
24M24.00 mi1.00 mi19813-277642-367642-3620150(Top 69%)8126(Top 65%)8126(Top 142%)
40K24.85 mi0.85 mi19794+197641+17641+119388(Top 67%)7776(Top 62%)7776(Top 136%)
25.2M25.20 mi0.35 mi19789+57649-87649-818536(Top 64%)7333(Top 58%)7333(Top 128%)
FINISH26.22 mi1.02 mi19805-167659-107659-1020235(Top 70%)8199(Top 65%)8199(Top 143%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18726

Females

6883

F18-39

6883

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19116

Females

7090

F18-39

7090

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18726

Females

6883

F18-39

6883

15K→20K

9.3 - 12.4 mi

Top 67%
×5
+106ft-86ft

Overall

19367

Females

7281

F18-39

7281

20K→HALF

12.4 - 13.1 mi

Top 71%
×2
+19ft-37ft

Overall

20619

Females

7919

F18-39

7919

HALF→25K

13.1 - 15.5 mi

Top 69%
×4
+66ft-88ft

Overall

19978

Females

7642

F18-39

7642

25K→30K

15.5 - 18.6 mi

Top 69%
×9
+181ft-148ft

Overall

20141

Females

7807

F18-39

7807

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

20141

Females

7881

F18-39

7881

20M→21M

20.0 - 21.0 mi

Top 69%
×8
+106ft-24ft

Overall

20160

Females

7938

F18-39

7938

21M→35K

21.0 - 21.8 mi

Top 66%
×7
+17ft-86ft

Overall

19273

Females

7587

F18-39

7587

35K→23M

21.8 - 23.0 mi

Top 66%
×5
+23ft-63ft

Overall

19199

Females

7571

F18-39

7571

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

20150

Females

8126

F18-39

8126

24M→40K

24.0 - 24.9 mi

Top 67%
×1
+6ft-20ft

Overall

19388

Females

7776

F18-39

7776

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1
+13ft-16ft

Overall

18536

Females

7333

F18-39

7333

25.2M→FINISH

25.2 - 26.2 mi

Top 70%
×2
+22ft-21ft

Overall

20235

Females

8199

F18-39

8199

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2697*
Passed By
1111
Net Change
+1544
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21349
5K → 10K1186*43+1143#21349#20206
10K → 15K526*29+497#20206#19709
15K → 20K196102+94#19709#19615
20K → HALF1858-40#19615#19655
HALF → 25K104151-47#19655#19702
25K → 30K158200-84#19702#19786
30K → 20M73108-35#19786#19821
20M → 21M80109-29#19821#19850
21M → 35K6933+36#19850#19814
35K → 23M8961+28#19814#19786
23M → 24M6188-27#19786#19813
24M → 40K6647+19#19813#19794
40K → 25.2M2722+5#19794#19789
25.2M → FINISH4460-16#19789#19805
TOTALS2697*1111+1544

* 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

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