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BOSTON MARATHON 2026

Laura Alcorn

Bib: 25953•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Division (F60-64)
#0 / 782
Top 48%
Race Day Weather
51°/41°F
overcast clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:55/mi
27:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:50/mi
55:07
↑ 79↓ 1380.4%
15K· 9.32 mi
8:51/mi
1:22:36
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:50:37
↑ 106↓ 860.1%
HALF· 13.11 mi
9:03/mi
1:56:47
↑ 19↓ 370.5%
25K· 15.53 mi
9:18/mi
2:19:20
↑ 66↓ 880.2%
30K· 18.64 mi
10:24/mi
2:51:38
↑ 181↓ 1480.2%
20M
11:49/mi
3:07:40
↑ 64↓ 500.2%
21M
11:29/mi
3:19:09
↑ 106↓ 241.6%
35K· 21.75 mi
10:06/mi
3:26:42
↑ 17↓ 861.7%
23M
10:10/mi
3:39:25
↑ 23↓ 630.6%
24M
10:03/mi
3:49:28
↓ 821.3%
40K· 24.85 mi
9:44/mi
3:57:47
↓ 200.3%
25.2M
10:38/mi
4:01:27
↑ 13↓ 160.2%
FINISH· 26.22 mi
9:18/mi
4:10:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HALFFaster
Distance13.11 mi
Time1:56:47
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:14:08
Pace10:14 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:34:1727:428:5527:42
8:55
-
10K
6.21 mi12:01:4255:078:5327:25
8:50
-0:05
15K
9.32 mi12:29:111:22:368:5227:29
8:51
+0:01
20K
12.43 mi12:57:121:50:378:5528:01
9:02
+0:11
HALF
13.11 mi13:03:221:56:478:556:10
9:03
+0:01
25K
15.53 mi13:25:552:19:208:5922:33
9:18
+0:15
30K
18.64 mi13:58:132:51:389:1332:18
10:24
+1:06
20M
20.00 mi14:14:153:07:409:2416:02
11:49
+1:25
21M
21.00 mi14:25:443:19:099:3011:29
11:29
-0:20
35K
21.75 mi14:33:173:26:429:317:33
10:06
-1:23
23M
23.00 mi14:46:003:39:259:3312:43
10:10
+0:04
24M
24.00 mi14:56:033:49:289:3410:03
10:03
-0:07
40K
24.85 mi15:04:223:57:479:358:19
9:44
-0:19
25.2M
25.20 mi15:08:024:01:279:353:40
10:38
+0:54
FINISH
26.22 mi15:17:304:10:559:359:28
9:18
-1:20

Checkpoints & Pacing

📈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

8:50 /mi

Average Pace

9:35 /mi

Slowest Pace

11:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:47

47% of race

Time at Steady Pace

1:10:39

28% of race

Time at Slower Pace

1:03:29

25% of race

Average Pace: 9:34 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:34:1727:428:5527:42
8:55
#22244
10K
6.21 mi12:01:4255:078:5327:25
8:50
#22152
15K
9.32 mi12:29:111:22:368:5227:29
8:51
#22073
20K
12.43 mi12:57:121:50:378:5528:01
9:02
#22046
HALF
13.11 mi13:03:221:56:478:556:10
9:03
#22082
25K
15.53 mi13:25:552:19:208:5922:33
9:18
#22111
30K
18.64 mi13:58:132:51:389:1332:18
10:24
#22661
20M
20.00 mi14:14:153:07:409:2416:02
11:49
#23077
21M
21.00 mi14:25:443:19:099:3011:29
11:29
#23126
35K
21.75 mi14:33:173:26:429:317:33
10:06
#23122
23M
23.00 mi14:46:003:39:259:3312:43
10:10
#23074
24M
24.00 mi14:56:033:49:289:3410:03
10:03
#23059
40K
24.85 mi15:04:223:57:479:358:19
9:44
#22984
25.2M
25.20 mi15:08:024:01:279:353:40
10:38
#22946
FINISH
26.22 mi15:17:304:10:559:359:28
9:18
#22901
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi222448802880221978(Top 76%)8635(Top 69%)8635(Top 1104%)
10K6.21 mi3.10 mi22152+928748+548748+5422036(Top 76%)8670(Top 69%)8670(Top 1109%)
15K9.32 mi3.11 mi22073+798697+518697+5121978(Top 76%)8635(Top 69%)8635(Top 1104%)
20K12.43 mi3.11 mi22046+278677+208677+2021999(Top 76%)8662(Top 69%)8662(Top 1108%)
HALF13.11 mi0.68 mi22082-368702-258702-2522981(Top 79%)9158(Top 73%)9158(Top 1171%)
25K15.53 mi2.42 mi22111-298712-108712-1022403(Top 77%)8888(Top 71%)8888(Top 1137%)
30K18.64 mi3.11 mi22661-5509030-3189030-31824075(Top 83%)9866(Top 78%)9866(Top 1262%)
20M20.00 mi1.36 mi23077-4169268-2389268-23826153(Top 90%)11061(Top 88%)11061(Top 1414%)
21M21.00 mi1.00 mi23126-499302-349302-3424166(Top 83%)10074(Top 80%)10074(Top 1288%)
35K21.75 mi0.75 mi23122+49315-139315-1323405(Top 81%)9662(Top 77%)9662(Top 1236%)
23M23.00 mi1.25 mi23074+489302+139302+1322565(Top 78%)9284(Top 74%)9284(Top 1187%)
24M24.00 mi1.00 mi23059+159300+29300+222959(Top 79%)9531(Top 76%)9531(Top 1219%)
40K24.85 mi0.85 mi22984+759269+319269+3121153(Top 73%)8663(Top 69%)8663(Top 1108%)
25.2M25.20 mi0.35 mi22946+389259+109259+1021499(Top 74%)8831(Top 70%)8831(Top 1129%)
FINISH26.22 mi1.02 mi22901+459249+109249+1021632(Top 75%)8880(Top 71%)8880(Top 1136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21978

Females

8635

F60-64

8635

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

22036

Females

8670

F60-64

8670

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21978

Females

8635

F60-64

8635

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21999

Females

8662

F60-64

8662

20K→HALF

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

22981

Females

9158

F60-64

9158

HALF→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

22403

Females

8888

F60-64

8888

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

24075

Females

9866

F60-64

9866

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

26153

Females

11061

F60-64

11061

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

24166

Females

10074

F60-64

10074

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23405

Females

9662

F60-64

9662

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22565

Females

9284

F60-64

9284

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22959

Females

9531

F60-64

9531

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

21153

Females

8663

F60-64

8663

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

21499

Females

8831

F60-64

8831

25.2M→FINISH

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21632

Females

8880

F60-64

8880

Passing Analysis

Category:
Athletes Passed
1358
Passed By
2015
Net Change
-657
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22244
5K → 10K319227+92#22244#22152
10K → 15K217138+79#22152#22073
15K → 20K180153+27#22073#22046
20K → HALF1854-36#22046#22082
HALF → 25K119148-29#22082#22111
25K → 30K57607-550#22111#22661
30K → 20M12428-416#22661#23077
20M → 21M52101-49#23077#23126
21M → 35K4238+4#23126#23122
35K → 23M8840+48#23122#23074
23M → 24M5439+15#23074#23059
24M → 40K816+75#23059#22984
40K → 25.2M468+38#22984#22946
25.2M → FINISH7328+45#22946#22901
TOTALS13582015-657
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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OTQ

Olympic Trials Qualifying analysis available

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing