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BOSTON MARATHON 2023

Shannon Thatcher

Bib: 30062•F

FL

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
12:48/mi
39:46
↑ 97↓ 3451.5%
10K· 6.21 mi
13:32/mi
1:21:48
↑ 79↓ 1380.4%
15K· 9.32 mi
13:32/mi
2:03:50
↑ 67↓ 78
20K· 12.43 mi
13:47/mi
2:46:38
↑ 106↓ 860.1%
Half· 13.11 mi
13:14/mi
2:55:40
↑ 19↓ 370.5%
25K· 15.53 mi
13:54/mi
3:29:23
↑ 66↓ 880.2%
30K· 18.64 mi
14:53/mi
4:15:37
↑ 181↓ 1480.2%
20M
13:43/mi
4:34:15
↑ 64↓ 500.2%
21M
15:26/mi
4:49:41
↑ 106↓ 241.6%
35K· 21.75 mi
13:51/mi
5:00:03
↑ 17↓ 861.7%
23M
13:54/mi
5:17:27
↑ 23↓ 630.6%
24M
13:42/mi
5:31:09
↓ 821.3%
40K· 24.85 mi
14:27/mi
5:43:30
↓ 200.3%
25.2M
13:41/mi
5:48:13
↑ 13↓ 160.2%
Finish· 26.22 mi
12:25/mi
6:00:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:55:40
Pace13:24 /mi
2nd Half
Distance13.11 mi
Time3:05:12
Pace14:08 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:3739:4612:4839:46
12:48
-
10K
6.21 mi12:40:391:21:4813:1042:02
13:32
+0:44
15K
9.32 mi13:22:412:03:5013:1742:02
13:32
0:00
20K
12.43 mi14:05:292:46:3813:2542:48
13:47
+0:15
Half
13.11 mi14:14:312:55:4013:249:02
13:14
-0:33
25K
15.53 mi14:48:143:29:2313:2933:43
13:54
+0:40
30K
18.64 mi15:34:284:15:3713:4346:14
14:53
+0:59
20M
20.00 mi15:53:064:34:1513:4318:38
13:43
-1:10
21M
21.00 mi16:08:324:49:4113:4815:26
15:26
+1:43
35K
21.75 mi16:18:545:00:0313:4810:22
13:51
-1:35
23M
23.00 mi16:36:185:17:2713:4817:24
13:54
+0:03
24M
24.00 mi16:50:005:31:0913:4813:42
13:42
-0:12
40K
24.85 mi17:02:215:43:3013:4912:21
14:27
+0:45
25.2M
25.20 mi17:07:045:48:1313:494:43
13:41
-0:46
Finish
26.22 mi17:19:436:00:5213:4612:39
12:25
-1:16

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

12:25 /mi

Average Pace

13:46 /mi

Slowest Pace

15:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:27

17% of race

Time at Steady Pace

3:45:24

62% of race

Time at Slower Pace

1:14:01

21% of race

Average Pace: 13:46 /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 mi11:58:3739:4612:4839:46
12:48
#26570
10K
6.21 mi12:40:391:21:4813:1042:02
13:32
#26598
15K
9.32 mi13:22:412:03:5013:1742:02
13:32
#26599
20K
12.43 mi14:05:292:46:3813:2542:48
13:47
#26591
Half
13.11 mi14:14:312:55:4013:249:02
13:14
#26590
25K
15.53 mi14:48:143:29:2313:2933:43
13:54
#26589
30K
18.64 mi15:34:284:15:3713:4346:14
14:53
#26590
20M
20.00 mi15:53:064:34:1513:4318:38
13:43
#26580
21M
21.00 mi16:08:324:49:4113:4815:26
15:26
#26576
35K
21.75 mi16:18:545:00:0313:4810:22
13:51
#26574
23M
23.00 mi16:36:185:17:2713:4817:24
13:54
#26560
24M
24.00 mi16:50:005:31:0913:4813:42
13:42
#26557
40K
24.85 mi17:02:215:43:3013:4912:21
14:27
#26549
25.2M
25.20 mi17:07:045:48:1313:494:43
13:41
#26539
Finish
26.22 mi17:19:436:00:5213:4612:39
12:25
#26532
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26570113991139926574(Top 100%)11406(Top 100%)11406(Top 234%)
10K6.21 mi3.10 mi26598-2811413-1411413-1426598(Top 100%)11415(Top 100%)11415(Top 234%)
15K9.32 mi3.11 mi26599-111416-311416-326574(Top 100%)11406(Top 100%)11406(Top 234%)
20K12.43 mi3.11 mi26591+811414+211414+226486(Top 99%)11342(Top 99%)11342(Top 232%)
Half13.11 mi0.68 mi26590+111415-111415-126412(Top 99%)11314(Top 99%)11314(Top 232%)
25K15.53 mi2.42 mi26589+111413+211413+226310(Top 99%)11250(Top 98%)11250(Top 230%)
30K18.64 mi3.11 mi26590-111414-111414-126386(Top 99%)11306(Top 99%)11306(Top 231%)
20M20.00 mi1.36 mi26580+1011406+811406+825678(Top 96%)10951(Top 96%)10951(Top 224%)
21M21.00 mi1.00 mi26576+411403+311403+325983(Top 98%)11105(Top 97%)11105(Top 227%)
35K21.75 mi0.75 mi26574+211405-211405-226077(Top 98%)11176(Top 98%)11176(Top 229%)
23M23.00 mi1.25 mi26560+1411396+911396+925766(Top 97%)11030(Top 97%)11030(Top 226%)
24M24.00 mi1.00 mi26557+311392+411392+425924(Top 97%)11129(Top 97%)11129(Top 228%)
40K24.85 mi0.85 mi26549+811389+311389+325928(Top 97%)11141(Top 98%)11141(Top 228%)
25.2M25.20 mi0.35 mi26539+1011383+611383+624735(Top 93%)10565(Top 92%)10565(Top 216%)
Finish26.22 mi1.02 mi26532+711379+411379+425622(Top 96%)10991(Top 96%)10991(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

26574

Females

11406

F18-39

11406

5K→10K

3.1 - 6.2 mi

Top 100%
×5story building
+79ft-138ft

Overall

26598

Females

11415

F18-39

11415

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

26574

Females

11406

F18-39

11406

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26486

Females

11342

F18-39

11342

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26412

Females

11314

F18-39

11314

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

26310

Females

11250

F18-39

11250

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26386

Females

11306

F18-39

11306

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

25678

Females

10951

F18-39

10951

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

25983

Females

11105

F18-39

11105

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

26077

Females

11176

F18-39

11176

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

25766

Females

11030

F18-39

11030

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25924

Females

11129

F18-39

11129

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25928

Females

11141

F18-39

11141

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24735

Females

10565

F18-39

10565

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25622

Females

10991

F18-39

10991

Passing Analysis

Category:
Athletes Passed
95
Passed By
57
Net Change
+38
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26570
5K → 10K129-28#26570#26598
10K → 15K45-1#26598#26599
15K → 20K91+8#26599#26591
20K → Half21+1#26591#26590
Half → 25K43+1#26590#26589
25K → 30K78-1#26589#26590
30K → 20M111+10#26590#26580
20M → 21M51+4#26580#26576
21M → 35K53+2#26576#26574
35K → 23M140+14#26574#26560
23M → 24M52+3#26560#26557
24M → 40K91+8#26557#26549
40K → 25.2M100+10#26549#26539
25.2M → Finish92+7#26539#26532
TOTALS9557+38
📊

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