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BOSTON MARATHON 2023

Anastasia Mcintosh

Bib: 19898•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:33/mi
26:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
52:10
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:17:33
↑ 67↓ 78
20K· 12.43 mi
8:15/mi
1:43:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:48:55
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:09:55
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:37:54
↑ 181↓ 1480.2%
20M
10:09/mi
2:51:42
↑ 64↓ 500.2%
21M
9:41/mi
3:01:23
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
3:08:10
↑ 17↓ 861.7%
23M
13:45/mi
3:25:23
↑ 23↓ 630.6%
24M
9:26/mi
3:34:49
↓ 821.3%
40K· 24.85 mi
9:40/mi
3:43:05
↓ 200.3%
25.2M
10:06/mi
3:46:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:55/mi
3:55:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:55
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time2:06:44
Pace9:40 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4026:338:3326:33
8:33
-
10K
6.21 mi11:48:1752:108:2425:37
8:15
-0:18
15K
9.32 mi12:13:401:17:338:1925:23
8:10
-0:05
20K
12.43 mi12:39:171:43:108:1825:37
8:15
+0:05
Half
13.11 mi12:45:021:48:558:185:45
8:26
+0:11
25K
15.53 mi13:06:022:09:558:2221:00
8:40
+0:14
30K
18.64 mi13:34:012:37:548:2827:59
9:00
+0:20
20M
20.00 mi13:47:492:51:428:3513:48
10:09
+1:09
21M
21.00 mi13:57:303:01:238:389:41
9:41
-0:28
35K
21.75 mi14:04:173:08:108:396:47
9:04
-0:37
23M
23.00 mi14:21:303:25:238:5617:13
13:45
+4:41
24M
24.00 mi14:30:563:34:498:579:26
9:26
-4:19
40K
24.85 mi14:39:123:43:058:598:16
9:40
+0:14
25.2M
25.20 mi14:42:413:46:348:593:29
10:06
+0:26
Finish
26.22 mi14:51:463:55:399:009:05
8:55
-1:11

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

8:10 /mi

Average Pace

9:00 /mi

Slowest Pace

13:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:37

33% of race

Time at Steady Pace

1:54:51

49% of race

Time at Slower Pace

44:11

19% of race

Average Pace: 8:59 /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 mi11:22:4026:338:3326:33
8:33
#17894
10K
6.21 mi11:48:1752:108:2425:37
8:15
#17191
15K
9.32 mi12:13:401:17:338:1925:23
8:10
#16668
20K
12.43 mi12:39:171:43:108:1825:37
8:15
#16301
Half
13.11 mi12:45:021:48:558:185:45
8:26
#16360
25K
15.53 mi13:06:022:09:558:2221:00
8:40
#16501
30K
18.64 mi13:34:012:37:548:2827:59
9:00
#16601
20M
20.00 mi13:47:492:51:428:3513:48
10:09
#17042
21M
21.00 mi13:57:303:01:238:389:41
9:41
#17011
35K
21.75 mi14:04:173:08:108:396:47
9:04
#17075
23M
23.00 mi14:21:303:25:238:5617:13
13:45
#18465
24M
24.00 mi14:30:563:34:498:579:26
9:26
#18499
40K
24.85 mi14:39:123:43:058:598:16
9:40
#18526
25.2M
25.20 mi14:42:413:46:348:593:29
10:06
#18508
Finish
26.22 mi14:51:463:55:399:009:05
8:55
#18494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi178946485648515671(Top 59%)5097(Top 45%)5097(Top 271%)
10K6.21 mi3.10 mi17191+7036049+4366049+43616569(Top 62%)5622(Top 49%)5622(Top 299%)
15K9.32 mi3.11 mi16668+5235711+3385711+33815671(Top 59%)5097(Top 45%)5097(Top 271%)
20K12.43 mi3.11 mi16301+3675489+2225489+22215257(Top 57%)4875(Top 43%)4875(Top 260%)
Half13.11 mi0.68 mi16360-595531-425531-4217391(Top 65%)6137(Top 54%)6137(Top 327%)
25K15.53 mi2.42 mi16501-1415640-1095640-10917186(Top 65%)6114(Top 54%)6114(Top 326%)
30K18.64 mi3.11 mi16601-1005748-1085748-10817218(Top 65%)6201(Top 54%)6201(Top 330%)
20M20.00 mi1.36 mi17042-4415994-2465994-24620893(Top 78%)8347(Top 73%)8347(Top 444%)
21M21.00 mi1.00 mi17011+315997-35997-316807(Top 63%)6083(Top 53%)6083(Top 324%)
35K21.75 mi0.75 mi17075-646048-516048-5118200(Top 68%)6952(Top 61%)6952(Top 370%)
23M23.00 mi1.25 mi18465-13906880-8326880-83225661(Top 96%)10984(Top 96%)10984(Top 585%)
24M24.00 mi1.00 mi18499-346907-276907-2718985(Top 71%)7437(Top 65%)7437(Top 396%)
40K24.85 mi0.85 mi18526-276932-256932-2518933(Top 71%)7456(Top 65%)7456(Top 397%)
25.2M25.20 mi0.35 mi18508+186930+26930+217819(Top 67%)6869(Top 60%)6869(Top 366%)
Finish26.22 mi1.02 mi18494+146931-16931-117568(Top 66%)6698(Top 59%)6698(Top 357%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

15671

Females

5097

F40-44

5097

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16569

Females

5622

F40-44

5622

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

15671

Females

5097

F40-44

5097

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

15257

Females

4875

F40-44

4875

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17391

Females

6137

F40-44

6137

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17186

Females

6114

F40-44

6114

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17218

Females

6201

F40-44

6201

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

20893

Females

8347

F40-44

8347

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16807

Females

6083

F40-44

6083

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18200

Females

6952

F40-44

6952

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25661

Females

10984

F40-44

10984

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18985

Females

7437

F40-44

7437

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18933

Females

7456

F40-44

7456

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17819

Females

6869

F40-44

6869

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

17568

Females

6698

F40-44

6698

Passing Analysis

Category:
Athletes Passed
2365
Passed By
2965
Net Change
-600
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17894
5K → 10K810107+703#17894#17191
10K → 15K57350+523#17191#16668
15K → 20K39629+367#16668#16301
20K → Half2382-59#16301#16360
Half → 25K90231-141#16360#16501
25K → 30K150250-100#16501#16601
30K → 20M15456-441#16601#17042
20M → 21M9968+31#17042#17011
21M → 35K2993-64#17011#17075
35K → 23M11391-1390#17075#18465
23M → 24M4276-34#18465#18499
24M → 40K4370-27#18499#18526
40K → 25.2M3618+18#18526#18508
25.2M → Finish5844+14#18508#18494
TOTALS23652965-600
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing