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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kori Corson

Bib: 22783 •F •Age: N/A

ID

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
Race Day Weather
51°/41°F
overcast clouds
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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
26:38
3.11 mi
Rank: #20485
Start → 5K
26:38 | 8:35/mi
10K
52:52
6.21 mi
Rank: #20205 (+280)
5K → 10K
26:14 | 8:27/mi
15K
1:19:12
9.32 mi
Rank: #20127 (+78)
10K → 15K
26:20 | 8:29/mi
20K
1:46:03
12.43 mi
Rank: #20092 (+35)
15K → 20K
26:51 | 8:39/mi
HALF
1:51:50
13.11 mi
Rank: #20110 (-18)
20K → HALF
5:47 | 8:30/mi
25K
2:12:36
15.53 mi
Rank: #19928 (+182)
HALF → 25K
20:46 | 8:34/mi
30K
2:40:36
18.64 mi
Rank: #19861 (+67)
25K → 30K
28:00 | 9:01/mi
20M
2:53:08
20.00 mi
Rank: #19878 (-17)
30K → 20M
12:32 | 9:14/mi
21M
3:02:57
21.00 mi
Rank: #19883 (-5)
20M → 21M
9:49 | 9:49/mi
35K
3:09:10
21.75 mi
Rank: #19762 (+121)
21M → 35K
6:13 | 8:19/mi
23M
3:20:15
23.00 mi
Rank: #19645 (+117)
35K → 23M
11:05 | 8:52/mi
24M
3:28:56
24.00 mi
Rank: #19562 (+83)
23M → 24M
8:41 | 8:41/mi
40K
3:36:41
24.85 mi
Rank: #19529 (+33)
24M → 40K
7:45 | 9:04/mi
25.2M
3:40:09
25.20 mi
Rank: #19527 (+2)
40K → 25.2M
3:28 | 10:04/mi
FINISH
3:49:30
26.22 mi
Rank: #19634 (-107)
25.2M → FINISH
9:21 | 9:11/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:50
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:57:40
Pace8:59 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:1126:388:3526:38
8:35
-
10K
6.21 mi11:57:2552:528:3126:14
8:27
-0:08
15K
9.32 mi12:23:451:19:128:3026:20
8:29
+0:02
20K
12.43 mi12:50:361:46:038:3326:51
8:39
+0:10
HALF
13.11 mi12:56:231:51:508:325:47
8:30
-0:09
25K
15.53 mi13:17:092:12:368:3320:46
8:34
+0:04
30K
18.64 mi13:45:092:40:368:3728:00
9:01
+0:27
20M
20.00 mi13:57:412:53:088:4012:32
9:14
+0:13
21M
21.00 mi14:07:303:02:578:439:49
9:49
+0:35
35K
21.75 mi14:13:433:09:108:426:13
8:19
-1:30
23M
23.00 mi14:24:483:20:158:4311:05
8:52
+0:33
24M
24.00 mi14:33:293:28:568:438:41
8:41
-0:11
40K
24.85 mi14:41:143:36:418:447:45
9:04
+0:23
25.2M
25.20 mi14:44:423:40:098:453:28
10:04
+1:00
FINISH
26.22 mi14:54:033:49:308:469:21
9:11
-0:53

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

8:19 /mi

Average Pace

8:46 /mi

Slowest Pace

10:04 /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

6:13

3% of race

Time at Steady Pace

2:32:22

66% of race

Time at Slower Pace

1:10:55

31% 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 mi11:31:1126:388:3526:38
8:35
#20485
10K
6.21 mi11:57:2552:528:3126:14
8:27
#20205
15K
9.32 mi12:23:451:19:128:3026:20
8:29
#20127
20K
12.43 mi12:50:361:46:038:3326:51
8:39
#20092
HALF
13.11 mi12:56:231:51:508:325:47
8:30
#20110
25K
15.53 mi13:17:092:12:368:3320:46
8:34
#19928
30K
18.64 mi13:45:092:40:368:3728:00
9:01
#19861
20M
20.00 mi13:57:412:53:088:4012:32
9:14
#19878
21M
21.00 mi14:07:303:02:578:439:49
9:49
#19883
35K
21.75 mi14:13:433:09:108:426:13
8:19
#19762
23M
23.00 mi14:24:483:20:158:4311:05
8:52
#19645
24M
24.00 mi14:33:293:28:568:438:41
8:41
#19562
40K
24.85 mi14:41:143:36:418:447:45
9:04
#19529
25.2M
25.20 mi14:44:423:40:098:453:28
10:04
#19527
FINISH
26.22 mi14:54:033:49:308:469:21
9:11
#19634
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi204857906790620019(Top 69%)7599(Top 60%)7599(Top 425%)
10K6.21 mi3.10 mi20205+2807715+1917715+19120041(Top 69%)7618(Top 61%)7618(Top 427%)
15K9.32 mi3.11 mi20127+787681+347681+3420019(Top 69%)7599(Top 60%)7599(Top 425%)
20K12.43 mi3.11 mi20092+357679+27679+220127(Top 69%)7696(Top 61%)7696(Top 431%)
HALF13.11 mi0.68 mi20110-187688-97688-920195(Top 70%)7686(Top 61%)7686(Top 430%)
25K15.53 mi2.42 mi19928+1827589+997589+9918976(Top 65%)7116(Top 57%)7116(Top 398%)
30K18.64 mi3.11 mi19861+677582+77582+719646(Top 68%)7563(Top 60%)7563(Top 423%)
20M20.00 mi1.36 mi19878-177609-277609-2719977(Top 69%)7806(Top 62%)7806(Top 437%)
21M21.00 mi1.00 mi19883-57623-147623-1419827(Top 68%)7758(Top 62%)7758(Top 434%)
35K21.75 mi0.75 mi19762+1217569+547569+5416551(Top 57%)6075(Top 48%)6075(Top 340%)
23M23.00 mi1.25 mi19645+1177538+317538+3117796(Top 61%)6861(Top 55%)6861(Top 384%)
24M24.00 mi1.00 mi19562+837499+397499+3917953(Top 62%)6976(Top 55%)6976(Top 391%)
40K24.85 mi0.85 mi19529+337493+67493+618725(Top 65%)7439(Top 59%)7439(Top 417%)
25.2M25.20 mi0.35 mi19527+27497-47497-419629(Top 68%)7884(Top 63%)7884(Top 441%)
FINISH26.22 mi1.02 mi19634-1077560-637560-6321211(Top 73%)8673(Top 69%)8673(Top 486%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21
+97ft-345ft

Overall

20019

Females

7599

F45-49

7599

5K→10K

3.1 - 6.2 mi

Top 69%
×5
+79ft-138ft

Overall

20041

Females

7618

F45-49

7618

10K→15K

6.2 - 9.3 mi

Top 69%
×3
+67ft-78ft

Overall

20019

Females

7599

F45-49

7599

15K→20K

9.3 - 12.4 mi

Top 69%
×5
+106ft-86ft

Overall

20127

Females

7696

F45-49

7696

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20195

Females

7686

F45-49

7686

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18976

Females

7116

F45-49

7116

25K→30K

15.5 - 18.6 mi

Top 68%
×9
+181ft-148ft

Overall

19646

Females

7563

F45-49

7563

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

19977

Females

7806

F45-49

7806

20M→21M

20.0 - 21.0 mi

Top 68%
×8
+106ft-24ft

Overall

19827

Females

7758

F45-49

7758

21M→35K

21.0 - 21.8 mi

Top 57%
×7
+17ft-86ft

Overall

16551

Females

6075

F45-49

6075

35K→23M

21.8 - 23.0 mi

Top 61%
×5
+23ft-63ft

Overall

17796

Females

6861

F45-49

6861

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

17953

Females

6976

F45-49

6976

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

18725

Females

7439

F45-49

7439

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19629

Females

7884

F45-49

7884

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21211

Females

8673

F45-49

8673

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1945*
Passed By
1094
Net Change
+851
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20485
5K → 10K444*164+280#20485#20205
10K → 15K225*147+78#20205#20127
15K → 20K172137+35#20127#20092
20K → HALF1836-18#20092#20110
HALF → 25K204*22+182#20110#19928
25K → 30K216*149+67#19928#19861
30K → 20M7693-17#19861#19878
20M → 21M8994-5#19878#19883
21M → 35K1254+121#19883#19762
35K → 23M14326+117#19762#19645
23M → 24M11330+83#19645#19562
24M → 40K7138+33#19562#19529
40K → 25.2M2624+2#19529#19527
25.2M → FINISH23130-107#19527#19634
TOTALS1945*1094+851

* 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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