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BOSTON MARATHON 2026

Katrina Keirns

Bib: 16560•F

CA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 28%
Gender (Female)
#0 / 12578
Top 11%
Age Group (F18-39)
#0 / 5716
Top 21%
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
22:48
3.11 mi
Rank: #11373
Start → 5K
22:48 | 7:21/mi
10K
44:48
6.21 mi
Rank: #10296 (+1077)
5K → 10K
22:00 | 7:05/mi
15K
1:06:42
9.32 mi
Rank: #9739 (+557)
10K → 15K
21:54 | 7:03/mi
20K
1:28:45
12.43 mi
Rank: #9408 (+331)
15K → 20K
22:03 | 7:06/mi
HALF
1:33:31
13.11 mi
Rank: #9364 (+44)
20K → HALF
4:46 | 7:00/mi
25K
1:50:50
15.53 mi
Rank: #9180 (+184)
HALF → 25K
17:19 | 7:09/mi
30K
2:13:28
18.64 mi
Rank: #8913 (+267)
25K → 30K
22:38 | 7:18/mi
20M
2:23:27
20.00 mi
Rank: #8801 (+112)
30K → 20M
9:59 | 7:21/mi
21M
2:31:04
21.00 mi
Rank: #8649 (+152)
20M → 21M
7:37 | 7:37/mi
35K
2:36:19
21.75 mi
Rank: #8555 (+94)
21M → 35K
5:15 | 7:02/mi
23M
2:45:27
23.00 mi
Rank: #8460 (+95)
35K → 23M
9:08 | 7:18/mi
24M
2:52:31
24.00 mi
Rank: #8357 (+103)
23M → 24M
7:04 | 7:04/mi
40K
2:58:39
24.85 mi
Rank: #8259 (+98)
24M → 40K
6:08 | 7:11/mi
25.2M
3:01:21
25.20 mi
Rank: #8221 (+38)
40K → 25.2M
2:42 | 7:50/mi
FINISH
3:08:31
26.22 mi
Rank: #8169 (+52)
25.2M → FINISH
7:10 | 7:02/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:33:31
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:35:00
Pace7:15 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:2222:487:2122:48
7:21
-
10K
6.21 mi11:26:2244:487:1322:00
7:05
-0:16
15K
9.32 mi11:48:161:06:427:1021:54
7:03
-0:02
20K
12.43 mi12:10:191:28:457:0922:03
7:06
+0:03
HALF
13.11 mi12:15:051:33:317:094:46
7:00
-0:06
25K
15.53 mi12:32:241:50:507:0917:19
7:09
+0:09
30K
18.64 mi12:55:022:13:287:1022:38
7:18
+0:09
20M
20.00 mi13:05:012:23:277:119:59
7:21
+0:03
21M
21.00 mi13:12:382:31:047:127:37
7:37
+0:16
35K
21.75 mi13:17:532:36:197:125:15
7:02
-0:35
23M
23.00 mi13:27:012:45:277:129:08
7:18
+0:16
24M
24.00 mi13:34:052:52:317:127:04
7:04
-0:14
40K
24.85 mi13:40:132:58:397:126:08
7:11
+0:07
25.2M
25.20 mi13:42:553:01:217:122:42
7:50
+0:39
FINISH
26.22 mi13:50:053:08:317:127:10
7:02
-0:48

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

7:00 /mi

Average Pace

7:12 /mi

Slowest Pace

7:50 /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

3:05:49

99% of race

Time at Steady Pace

2:42

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /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 mi11:04:2222:487:2122:48
7:21
#11373
10K
6.21 mi11:26:2244:487:1322:00
7:05
#10296
15K
9.32 mi11:48:161:06:427:1021:54
7:03
#9739
20K
12.43 mi12:10:191:28:457:0922:03
7:06
#9408
HALF
13.11 mi12:15:051:33:317:094:46
7:00
#9364
25K
15.53 mi12:32:241:50:507:0917:19
7:09
#9180
30K
18.64 mi12:55:022:13:287:1022:38
7:18
#8913
20M
20.00 mi13:05:012:23:277:119:59
7:21
#8801
21M
21.00 mi13:12:382:31:047:127:37
7:37
#8649
35K
21.75 mi13:17:532:36:197:125:15
7:02
#8555
23M
23.00 mi13:27:012:45:277:129:08
7:18
#8460
24M
24.00 mi13:34:052:52:317:127:04
7:04
#8357
40K
24.85 mi13:40:132:58:397:126:08
7:11
#8259
25.2M
25.20 mi13:42:553:01:217:122:42
7:50
#8221
FINISH
26.22 mi13:50:053:08:317:127:10
7:02
#8169
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 mi11373256225628897(Top 31%)1451(Top 12%)1451(Top 25%)
10K6.21 mi3.10 mi10296+10772042+5202042+5209289(Top 32%)1581(Top 13%)1581(Top 28%)
15K9.32 mi3.11 mi9739+5571782+2601782+2608897(Top 31%)1451(Top 12%)1451(Top 25%)
20K12.43 mi3.11 mi9408+3311650+1321650+1328589(Top 30%)1384(Top 11%)1384(Top 24%)
HALF13.11 mi0.68 mi9364+441639+111639+118675(Top 30%)1362(Top 11%)1362(Top 24%)
25K15.53 mi2.42 mi9180+1841581+581581+588442(Top 29%)1423(Top 11%)1423(Top 25%)
30K18.64 mi3.11 mi8913+2671517+641517+647986(Top 28%)1360(Top 11%)1360(Top 24%)
20M20.00 mi1.36 mi8801+1121504+131504+138055(Top 28%)1498(Top 12%)1498(Top 26%)
21M21.00 mi1.00 mi8649+1521469+351469+357303(Top 25%)1332(Top 11%)1332(Top 23%)
35K21.75 mi0.75 mi8555+941450+191450+197303(Top 25%)1283(Top 10%)1283(Top 22%)
23M23.00 mi1.25 mi8460+951437+131437+137483(Top 26%)1413(Top 11%)1413(Top 25%)
24M24.00 mi1.00 mi8357+1031421+161421+166978(Top 24%)1281(Top 10%)1281(Top 22%)
40K24.85 mi0.85 mi8259+981405+161405+166614(Top 23%)1212(Top 10%)1212(Top 21%)
25.2M25.20 mi0.35 mi8221+38140514057319(Top 25%)1557(Top 12%)1557(Top 27%)
FINISH26.22 mi1.02 mi8169+521408-31408-37862(Top 27%)1853(Top 15%)1853(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21
+97ft-345ft

Overall

8897

Females

1451

F18-39

1451

5K→10K

3.1 - 6.2 mi

Top 32%
×5
+79ft-138ft

Overall

9289

Females

1581

F18-39

1581

10K→15K

6.2 - 9.3 mi

Top 31%
×3
+67ft-78ft

Overall

8897

Females

1451

F18-39

1451

15K→20K

9.3 - 12.4 mi

Top 30%
×5
+106ft-86ft

Overall

8589

Females

1384

F18-39

1384

20K→HALF

12.4 - 13.1 mi

Top 30%
×2
+19ft-37ft

Overall

8675

Females

1362

F18-39

1362

HALF→25K

13.1 - 15.5 mi

Top 29%
×4
+66ft-88ft

Overall

8442

Females

1423

F18-39

1423

25K→30K

15.5 - 18.6 mi

Top 28%
×9
+181ft-148ft

Overall

7986

Females

1360

F18-39

1360

30K→20M

18.6 - 20.0 mi

Top 28%
×5
+64ft-50ft

Overall

8055

Females

1498

F18-39

1498

20M→21M

20.0 - 21.0 mi

Top 25%
×8
+106ft-24ft

Overall

7303

Females

1332

F18-39

1332

21M→35K

21.0 - 21.8 mi

Top 25%
×7
+17ft-86ft

Overall

7303

Females

1283

F18-39

1283

35K→23M

21.8 - 23.0 mi

Top 26%
×5
+23ft-63ft

Overall

7483

Females

1413

F18-39

1413

23M→24M

23.0 - 24.0 mi

Top 24%
×6
+12ft-82ft

Overall

6978

Females

1281

F18-39

1281

24M→40K

24.0 - 24.9 mi

Top 23%
×1
+6ft-20ft

Overall

6614

Females

1212

F18-39

1212

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1
+13ft-16ft

Overall

7319

Females

1557

F18-39

1557

25.2M→FINISH

25.2 - 26.2 mi

Top 27%
×2
+22ft-21ft

Overall

7862

Females

1853

F18-39

1853

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3528*
Passed By
324
Net Change
+3204
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11373
5K → 10K1101*24+1077#11373#10296
10K → 15K579*22+557#10296#9739
15K → 20K350*19+331#9739#9408
20K → HALF495+44#9408#9364
HALF → 25K207*23+184#9364#9180
25K → 30K305*38+267#9180#8913
30K → 20M14533+112#8913#8801
20M → 21M17220+152#8801#8649
21M → 35K10410+94#8649#8555
35K → 23M12833+95#8555#8460
23M → 24M12825+103#8460#8357
24M → 40K11416+98#8357#8259
40K → 25.2M5517+38#8259#8221
25.2M → FINISH9139+52#8221#8169
TOTALS3528*324+3204

* 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing