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BOSTON MARATHON 2023

Claire Brown

Bib: 11912•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 27%
Gender (Female)
#0 / 11423
Top 8%
Division (F18-39)
#0 / 4884
Top 16%
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
7:16/mi
22:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:03/mi
44:30
↑ 79↓ 1380.4%
15K· 9.32 mi
7:04/mi
1:06:28
↑ 67↓ 78
20K· 12.43 mi
7:16/mi
1:29:03
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:33:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:16/mi
1:51:32
↑ 66↓ 880.2%
30K· 18.64 mi
7:31/mi
2:14:52
↑ 181↓ 1480.2%
20M
7:33/mi
2:25:08
↑ 64↓ 500.2%
21M
8:04/mi
2:33:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:17/mi
2:38:39
↑ 17↓ 861.7%
23M
7:40/mi
2:48:15
↑ 23↓ 630.6%
24M
7:28/mi
2:55:43
↓ 821.3%
40K· 24.85 mi
7:44/mi
3:02:20
↓ 200.3%
25.2M
8:13/mi
3:05:10
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:12:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:54
Pace7:10 /mi
2nd Half
Distance13.11 mi
Time1:39:02
Pace7:33 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1822:357:1622:35
7:16
-
10K
6.21 mi11:11:1344:307:1021:55
7:03
-0:13
15K
9.32 mi11:33:111:06:287:0821:58
7:04
+0:01
20K
12.43 mi11:55:461:29:037:1022:35
7:16
+0:12
Half
13.11 mi12:00:371:33:547:104:51
7:07
-0:09
25K
15.53 mi12:18:151:51:327:1117:38
7:16
+0:09
30K
18.64 mi12:41:352:14:527:1423:20
7:31
+0:15
20M
20.00 mi12:51:512:25:087:1510:16
7:33
+0:02
21M
21.00 mi12:59:552:33:127:188:04
8:04
+0:31
35K
21.75 mi13:05:222:38:397:185:27
7:17
-0:47
23M
23.00 mi13:14:582:48:157:199:36
7:40
+0:23
24M
24.00 mi13:22:262:55:437:197:28
7:28
-0:12
40K
24.85 mi13:29:033:02:207:206:37
7:44
+0:16
25.2M
25.20 mi13:31:533:05:107:212:50
8:13
+0:29
Finish
26.22 mi13:39:393:12:567:227:46
7:37
-0:36

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

7:03 /mi

Average Pace

7:22 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:02

94% of race

Time at Steady Pace

10:54

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:49:1822:357:1622:35
7:16
#7935
10K
6.21 mi11:11:1344:307:1021:55
7:03
#7511
15K
9.32 mi11:33:111:06:287:0821:58
7:04
#7308
20K
12.43 mi11:55:461:29:037:1022:35
7:16
#7315
Half
13.11 mi12:00:371:33:547:104:51
7:07
#7302
25K
15.53 mi12:18:151:51:327:1117:38
7:16
#7254
30K
18.64 mi12:41:352:14:527:1423:20
7:31
#7201
20M
20.00 mi12:51:512:25:087:1510:16
7:33
#7161
21M
21.00 mi12:59:552:33:127:188:04
8:04
#7150
35K
21.75 mi13:05:222:38:397:185:27
7:17
#7139
23M
23.00 mi13:14:582:48:157:199:36
7:40
#7108
24M
24.00 mi13:22:262:55:437:197:28
7:28
#7099
40K
24.85 mi13:29:033:02:207:206:37
7:44
#7108
25.2M
25.20 mi13:31:533:05:107:212:50
8:13
#7100
Finish
26.22 mi13:39:393:12:567:227:46
7:37
#7132
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi79359959956982(Top 26%)741(Top 6%)741(Top 15%)
10K6.21 mi3.10 mi7511+424861+134861+1347159(Top 27%)797(Top 7%)797(Top 16%)
15K9.32 mi3.11 mi7308+203815+46815+466982(Top 26%)741(Top 6%)741(Top 15%)
20K12.43 mi3.11 mi7315-7830-15830-157568(Top 28%)949(Top 8%)949(Top 19%)
Half13.11 mi0.68 mi7302+13828+2828+27282(Top 27%)848(Top 7%)848(Top 17%)
25K15.53 mi2.42 mi7254+48824+4824+47132(Top 27%)883(Top 8%)883(Top 18%)
30K18.64 mi3.11 mi7201+53827-3827-37296(Top 27%)1034(Top 9%)1034(Top 21%)
20M20.00 mi1.36 mi7161+40831-4831-47198(Top 27%)1090(Top 10%)1090(Top 22%)
21M21.00 mi1.00 mi7150+11844-13844-137805(Top 29%)1420(Top 12%)1420(Top 29%)
35K21.75 mi0.75 mi7139+11848-4848-47064(Top 27%)1117(Top 10%)1117(Top 23%)
23M23.00 mi1.25 mi7108+31874-26874-267561(Top 28%)1394(Top 12%)1394(Top 29%)
24M24.00 mi1.00 mi7099+9890-16890-167495(Top 28%)1478(Top 13%)1478(Top 30%)
40K24.85 mi0.85 mi7108-9911-21911-218254(Top 31%)1836(Top 16%)1836(Top 38%)
25.2M25.20 mi0.35 mi7100+8916-5916-57814(Top 29%)1726(Top 15%)1726(Top 35%)
Finish26.22 mi1.02 mi7132-32954-38954-389420(Top 35%)2425(Top 21%)2425(Top 50%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

6982

Females

741

F18-39

741

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7159

Females

797

F18-39

797

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

6982

Females

741

F18-39

741

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7568

Females

949

F18-39

949

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7282

Females

848

F18-39

848

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7132

Females

883

F18-39

883

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7296

Females

1034

F18-39

1034

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7198

Females

1090

F18-39

1090

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7805

Females

1420

F18-39

1420

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7064

Females

1117

F18-39

1117

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7561

Females

1394

F18-39

1394

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7495

Females

1478

F18-39

1478

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8254

Females

1836

F18-39

1836

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7814

Females

1726

F18-39

1726

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9420

Females

2425

F18-39

2425

Passing Analysis

Category:
Athletes Passed
1624
Passed By
821
Net Change
+803
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7935
5K → 10K50480+424#7935#7511
10K → 15K25956+203#7511#7308
15K → 20K111118-7#7308#7315
20K → Half2714+13#7315#7302
Half → 25K9749+48#7302#7254
25K → 30K14895+53#7254#7201
30K → 20M7636+40#7201#7161
20M → 21M6958+11#7161#7150
21M → 35K4231+11#7150#7139
35K → 23M9968+31#7139#7108
23M → 24M5849+9#7108#7099
24M → 40K4756-9#7099#7108
40K → 25.2M2820+8#7108#7100
25.2M → Finish5991-32#7100#7132
TOTALS1624821+803
📊

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