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BOSTON MARATHON 2023

Isabella Dobson

Bib: 11171•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 46%
Gender (Female)
#0 / 11423
Top 28%
Division (F18-39)
#0 / 4884
Top 46%
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
7:14/mi
22:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:18/mi
45:10
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:03
↑ 67↓ 78
20K· 12.43 mi
7:24/mi
1:31:03
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:04
↑ 19↓ 370.5%
25K· 15.53 mi
7:28/mi
1:54:11
↑ 66↓ 880.2%
30K· 18.64 mi
7:48/mi
2:18:24
↑ 181↓ 1480.2%
20M
7:59/mi
2:29:15
↑ 64↓ 500.2%
21M
12:34/mi
2:41:49
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
2:49:02
↑ 17↓ 861.7%
23M
11:28/mi
3:03:24
↑ 23↓ 630.6%
24M
8:09/mi
3:11:33
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:18:33
↓ 200.3%
25.2M
8:54/mi
3:21:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:29:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:04
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:53:33
Pace8:40 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3122:287:1422:28
7:14
-
10K
6.21 mi11:12:1345:107:1622:42
7:18
+0:04
15K
9.32 mi11:35:061:08:037:1822:53
7:22
+0:04
20K
12.43 mi11:58:061:31:037:2023:00
7:24
+0:02
Half
13.11 mi12:03:071:36:047:205:01
7:21
-0:03
25K
15.53 mi12:21:141:54:117:2118:07
7:28
+0:07
30K
18.64 mi12:45:272:18:247:2524:13
7:48
+0:20
20M
20.00 mi12:56:182:29:157:2810:51
7:59
+0:11
21M
21.00 mi13:08:522:41:497:4212:34
12:34
+4:35
35K
21.75 mi13:16:052:49:027:467:13
9:39
-2:55
23M
23.00 mi13:30:273:03:247:5814:22
11:28
+1:49
24M
24.00 mi13:38:363:11:337:598:09
8:09
-3:19
40K
24.85 mi13:45:363:18:337:597:00
8:11
+0:02
25.2M
25.20 mi13:48:403:21:378:003:04
8:54
+0:43
Finish
26.22 mi13:56:403:29:378:008:00
7:51
-1:03

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

7:14 /mi

Average Pace

8:00 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:52:24

82% of race

Time at Slower Pace

37:13

18% of race

Average Pace: 8:00 /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 mi10:49:3122:287:1422:28
7:14
#7702
10K
6.21 mi11:12:1345:107:1622:42
7:18
#8250
15K
9.32 mi11:35:061:08:037:1822:53
7:22
#8479
20K
12.43 mi11:58:061:31:037:2023:00
7:24
#8439
Half
13.11 mi12:03:071:36:047:205:01
7:21
#8475
25K
15.53 mi12:21:141:54:117:2118:07
7:28
#8444
30K
18.64 mi12:45:272:18:247:2524:13
7:48
#8562
20M
20.00 mi12:56:182:29:157:2810:51
7:59
#8656
21M
21.00 mi13:08:522:41:497:4212:34
12:34
#10268
35K
21.75 mi13:16:052:49:027:467:13
9:39
#10764
23M
23.00 mi13:30:273:03:247:5814:22
11:28
#12247
24M
24.00 mi13:38:363:11:337:598:09
8:09
#12252
40K
24.85 mi13:45:363:18:337:597:00
8:11
#12186
25.2M
25.20 mi13:48:403:21:378:003:04
8:54
#12181
Finish
26.22 mi13:56:403:29:378:008:00
7:51
#12133
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi77029179179075(Top 34%)1481(Top 13%)1481(Top 30%)
10K6.21 mi3.10 mi8250-5481125-2081125-2088911(Top 33%)1375(Top 12%)1375(Top 28%)
15K9.32 mi3.11 mi8479-2291213-881213-889075(Top 34%)1481(Top 13%)1481(Top 30%)
20K12.43 mi3.11 mi8439+401215-21215-28559(Top 32%)1323(Top 12%)1323(Top 27%)
Half13.11 mi0.68 mi8475-361229-141229-149124(Top 34%)1548(Top 14%)1548(Top 32%)
25K15.53 mi2.42 mi8444+311238-91238-98595(Top 32%)1386(Top 12%)1386(Top 28%)
30K18.64 mi3.11 mi8562-1181318-801318-809342(Top 35%)1862(Top 16%)1862(Top 38%)
20M20.00 mi1.36 mi8656-941374-561374-5610188(Top 38%)2328(Top 20%)2328(Top 48%)
21M21.00 mi1.00 mi10268-16122082-7082082-70823539(Top 88%)9830(Top 86%)9830(Top 201%)
35K21.75 mi0.75 mi10764-4962357-2752357-27520305(Top 76%)8105(Top 71%)8105(Top 166%)
23M23.00 mi1.25 mi12247-14833194-8373194-83723208(Top 87%)9697(Top 85%)9697(Top 199%)
24M24.00 mi1.00 mi12252-53218-243218-2412276(Top 46%)3736(Top 33%)3736(Top 76%)
40K24.85 mi0.85 mi12186+663203+153203+1511293(Top 42%)3302(Top 29%)3302(Top 68%)
25.2M25.20 mi0.35 mi12181+53203320311956(Top 45%)3694(Top 32%)3694(Top 76%)
Finish26.22 mi1.02 mi12133+483201+23201+211068(Top 42%)3233(Top 28%)3233(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9075

Females

1481

F18-39

1481

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

8911

Females

1375

F18-39

1375

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9075

Females

1481

F18-39

1481

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8559

Females

1323

F18-39

1323

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9124

Females

1548

F18-39

1548

Half→25K

13.1 - 15.5 mi

Top 32%
×4story building
+66ft-88ft

Overall

8595

Females

1386

F18-39

1386

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9342

Females

1862

F18-39

1862

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10188

Females

2328

F18-39

2328

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23539

Females

9830

F18-39

9830

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20305

Females

8105

F18-39

8105

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

23208

Females

9697

F18-39

9697

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12276

Females

3736

F18-39

3736

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11293

Females

3302

F18-39

3302

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11956

Females

3694

F18-39

3694

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11068

Females

3233

F18-39

3233

Passing Analysis

Category:
Athletes Passed
877
Passed By
5306
Net Change
-4431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7702
5K → 10K60608-548#7702#8250
10K → 15K70299-229#8250#8479
15K → 20K152112+40#8479#8439
20K → Half1046-36#8439#8475
Half → 25K11079+31#8475#8444
25K → 30K119237-118#8444#8562
30K → 20M55149-94#8562#8656
20M → 21M11611-1612#8656#10268
21M → 35K8504-496#10268#10764
35K → 23M11484-1483#10764#12247
23M → 24M5863-5#12247#12252
24M → 40K8923+66#12252#12186
40K → 25.2M3530+5#12186#12181
25.2M → Finish10961+48#12181#12133
TOTALS8775306-4431
📊

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