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BOSTON MARATHON 2023

Tara Dorsey

Bib: 17631•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
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
8:07/mi
25:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:59/mi
50:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:14:50
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:40:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:45:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:23/mi
2:05:51
↑ 66↓ 880.2%
30K· 18.64 mi
8:48/mi
2:33:10
↑ 181↓ 1480.2%
20M
8:38/mi
2:44:54
↑ 64↓ 500.2%
21M
9:07/mi
2:54:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
3:00:20
↑ 17↓ 861.7%
23M
8:41/mi
3:11:12
↑ 23↓ 630.6%
24M
8:28/mi
3:19:40
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:26:50
↓ 200.3%
25.2M
9:08/mi
3:29:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:09/mi
3:38:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:32
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0025:128:0725:12
8:07
-
10K
6.21 mi11:40:4950:018:0324:49
7:59
-0:08
15K
9.32 mi12:05:381:14:508:0224:49
7:59
0:00
20K
12.43 mi12:30:511:40:038:0325:13
8:07
+0:08
Half
13.11 mi12:36:201:45:328:035:29
8:02
-0:05
25K
15.53 mi12:56:392:05:518:0620:19
8:23
+0:21
30K
18.64 mi13:23:582:33:108:1327:19
8:48
+0:25
20M
20.00 mi13:35:422:44:548:1511:44
8:38
-0:10
21M
21.00 mi13:44:492:54:018:179:07
9:07
+0:29
35K
21.75 mi13:51:083:00:208:186:19
8:27
-0:40
23M
23.00 mi14:02:003:11:128:1910:52
8:41
+0:14
24M
24.00 mi14:10:283:19:408:198:28
8:28
-0:13
40K
24.85 mi14:17:383:26:508:197:10
8:23
-0:05
25.2M
25.20 mi14:20:473:29:598:203:09
9:08
+0:45
Finish
26.22 mi14:29:053:38:178:208:18
8:09
-0:59

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

7:59 /mi

Average Pace

8:20 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:42

82% of race

Time at Steady Pace

39:35

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi11:16:0025:128:0725:12
8:07
#14803
10K
6.21 mi11:40:4950:018:0324:49
7:59
#14741
15K
9.32 mi12:05:381:14:508:0224:49
7:59
#14558
20K
12.43 mi12:30:511:40:038:0325:13
8:07
#14495
Half
13.11 mi12:36:201:45:328:035:29
8:02
#14502
25K
15.53 mi12:56:392:05:518:0620:19
8:23
#14659
30K
18.64 mi13:23:582:33:108:1327:19
8:48
#14933
20M
20.00 mi13:35:422:44:548:1511:44
8:38
#14872
21M
21.00 mi13:44:492:54:018:179:07
9:07
#14801
35K
21.75 mi13:51:083:00:208:186:19
8:27
#14794
23M
23.00 mi14:02:003:11:128:1910:52
8:41
#14764
24M
24.00 mi14:10:283:19:408:198:28
8:28
#14714
40K
24.85 mi14:17:383:26:508:197:10
8:23
#14613
25.2M
25.20 mi14:20:473:29:598:203:09
9:08
#14582
Finish
26.22 mi14:29:053:38:178:208:18
8:09
#14497
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi148034517451714310(Top 54%)4267(Top 37%)4267(Top 87%)
10K6.21 mi3.10 mi14741+624492+254492+2514736(Top 55%)4502(Top 39%)4502(Top 92%)
15K9.32 mi3.11 mi14558+1834384+1084384+10814310(Top 54%)4267(Top 37%)4267(Top 87%)
20K12.43 mi3.11 mi14495+634368+164368+1614343(Top 54%)4314(Top 38%)4314(Top 88%)
Half13.11 mi0.68 mi14502-74369-14369-114719(Top 55%)4515(Top 40%)4515(Top 92%)
25K15.53 mi2.42 mi14659-1574500-1314500-13115452(Top 58%)5107(Top 45%)5107(Top 105%)
30K18.64 mi3.11 mi14933-2744702-2024702-20216004(Top 60%)5497(Top 48%)5497(Top 113%)
20M20.00 mi1.36 mi14872+614687+154687+1514499(Top 54%)4701(Top 41%)4701(Top 96%)
21M21.00 mi1.00 mi14801+714664+234664+2314076(Top 53%)4523(Top 40%)4523(Top 93%)
35K21.75 mi0.75 mi14794+74679-154679-1514992(Top 56%)5097(Top 45%)5097(Top 104%)
23M23.00 mi1.25 mi14764+304694-154694-1514267(Top 54%)4767(Top 42%)4767(Top 98%)
24M24.00 mi1.00 mi14714+504684+104684+1014301(Top 54%)4842(Top 42%)4842(Top 99%)
40K24.85 mi0.85 mi14613+1014646+384646+3812628(Top 47%)4020(Top 35%)4020(Top 82%)
25.2M25.20 mi0.35 mi14582+314639+74639+713339(Top 50%)4410(Top 39%)4410(Top 90%)
Finish26.22 mi1.02 mi14497+854597+424597+4213100(Top 49%)4269(Top 37%)4269(Top 87%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14310

Females

4267

F18-39

4267

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

14736

Females

4502

F18-39

4502

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14310

Females

4267

F18-39

4267

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14343

Females

4314

F18-39

4314

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14719

Females

4515

F18-39

4515

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

15452

Females

5107

F18-39

5107

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16004

Females

5497

F18-39

5497

30K→20M

18.6 - 20.0 mi

Top 54%
×5story building
+64ft-50ft

Overall

14499

Females

4701

F18-39

4701

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14076

Females

4523

F18-39

4523

21M→35K

21.0 - 21.8 mi

Top 56%
×7story building
+17ft-86ft

Overall

14992

Females

5097

F18-39

5097

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14267

Females

4767

F18-39

4767

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

14301

Females

4842

F18-39

4842

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12628

Females

4020

F18-39

4020

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13339

Females

4410

F18-39

4410

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13100

Females

4269

F18-39

4269

Passing Analysis

Category:
Athletes Passed
1782
Passed By
1476
Net Change
+306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14803
5K → 10K319257+62#14803#14741
10K → 15K300117+183#14741#14558
15K → 20K209146+63#14558#14495
20K → Half2532-7#14495#14502
Half → 25K99256-157#14502#14659
25K → 30K96370-274#14659#14933
30K → 20M11251+61#14933#14872
20M → 21M11241+71#14872#14801
21M → 35K5548+7#14801#14794
35K → 23M9969+30#14794#14764
23M → 24M8838+50#14764#14714
24M → 40K11918+101#14714#14613
40K → 25.2M4312+31#14613#14582
25.2M → Finish10621+85#14582#14497
TOTALS17821476+306
📊

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