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BOSTON MARATHON 2023

Bronwyn Lee

Bib: 17002•F

NY

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

Start
0:00:00
Race begins
5K· 3.11 mi
24:06
Rank: #12004
Start → 5K
24:06 | 7:45/mi
10K· 6.21 mi
48:30
Rank: #12764 (-760)
5K → 10K
24:24 | 7:51/mi
15K· 9.32 mi
1:13:38
Rank: #13579 (-815)
10K → 15K
25:08 | 8:05/mi
20K· 12.43 mi
1:41:10
Rank: #15181 (-1602)
15K → 20K
27:32 | 8:52/mi
Half· 13.11 mi
1:46:53
Rank: #15279 (-98)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:09:22
Rank: #16246 (-967)
Half → 25K
22:29 | 9:16/mi
30K· 18.64 mi
2:37:04
Rank: #16336 (-90)
25K → 30K
27:42 | 8:55/mi
20M
2:49:15
Rank: #16302 (+34)
30K → 20M
12:11 | 8:58/mi
21M
2:59:10
Rank: #16380 (-78)
20M → 21M
9:55 | 9:55/mi
35K· 21.75 mi
3:05:39
Rank: #16361 (+19)
21M → 35K
6:29 | 8:40/mi
23M
3:18:17
Rank: #16709 (-348)
35K → 23M
12:38 | 10:05/mi
24M
3:26:41
Rank: #16582 (+127)
23M → 24M
8:24 | 8:24/mi
40K· 24.85 mi
3:34:12
Rank: #16502 (+80)
24M → 40K
7:31 | 8:47/mi
25.2M
3:37:29
Rank: #16472 (+30)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:46:03
Rank: #16391 (+81)
25.2M → Finish
8:34 | 8:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:53
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:59:10
Pace9:05 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0124:067:4524:06
7:45
-
10K
6.21 mi11:39:2548:307:4824:24
7:51
+0:06
15K
9.32 mi12:04:331:13:387:5425:08
8:05
+0:14
20K
12.43 mi12:32:051:41:108:0827:32
8:52
+0:47
Half
13.11 mi12:37:481:46:538:095:43
8:23
-0:29
25K
15.53 mi13:00:172:09:228:2022:29
9:16
+0:53
30K
18.64 mi13:27:592:37:048:2627:42
8:55
-0:21
20M
20.00 mi13:40:102:49:158:2812:11
8:58
+0:03
21M
21.00 mi13:50:052:59:108:329:55
9:55
+0:57
35K
21.75 mi13:56:343:05:398:326:29
8:40
-1:15
23M
23.00 mi14:09:123:18:178:3712:38
10:05
+1:25
24M
24.00 mi14:17:363:26:418:378:24
8:24
-1:41
40K
24.85 mi14:25:073:34:128:377:31
8:47
+0:23
25.2M
25.20 mi14:28:243:37:298:383:17
9:31
+0:44
Finish
26.22 mi14:36:583:46:038:388:34
8:24
-1:07

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

7:45 /mi

Average Pace

8:38 /mi

Slowest Pace

10:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:19

43% of race

Time at Steady Pace

1:21:25

36% of race

Time at Slower Pace

48:19

21% of race

Average Pace: 8:37 /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 mi11:15:0124:067:4524:06
7:45
#12004
10K
6.21 mi11:39:2548:307:4824:24
7:51
#12764
15K
9.32 mi12:04:331:13:387:5425:08
8:05
#13579
20K
12.43 mi12:32:051:41:108:0827:32
8:52
#15181
Half
13.11 mi12:37:481:46:538:095:43
8:23
#15279
25K
15.53 mi13:00:172:09:228:2022:29
9:16
#16246
30K
18.64 mi13:27:592:37:048:2627:42
8:55
#16336
20M
20.00 mi13:40:102:49:158:2812:11
8:58
#16302
21M
21.00 mi13:50:052:59:108:329:55
9:55
#16380
35K
21.75 mi13:56:343:05:398:326:29
8:40
#16361
23M
23.00 mi14:09:123:18:178:3712:38
10:05
#16709
24M
24.00 mi14:17:363:26:418:378:24
8:24
#16582
40K
24.85 mi14:25:073:34:128:377:31
8:47
#16502
25.2M
25.20 mi14:28:243:37:298:383:17
9:31
#16472
Finish
26.22 mi14:36:583:46:038:388:34
8:24
#16391
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi120042876287615111(Top 57%)4743(Top 42%)4743(Top 97%)
10K6.21 mi3.10 mi12764-7603296-4203296-42013611(Top 51%)3800(Top 33%)3800(Top 78%)
15K9.32 mi3.11 mi13579-8153808-5123808-51215111(Top 57%)4743(Top 42%)4743(Top 97%)
20K12.43 mi3.11 mi15181-16024798-9904798-99019011(Top 71%)7089(Top 62%)7089(Top 145%)
Half13.11 mi0.68 mi15279-984863-654863-6517039(Top 64%)5918(Top 52%)5918(Top 121%)
25K15.53 mi2.42 mi16246-9675481-6185481-61820104(Top 76%)7750(Top 68%)7750(Top 159%)
30K18.64 mi3.11 mi16336-905589-1085589-10816740(Top 63%)5914(Top 52%)5914(Top 121%)
20M20.00 mi1.36 mi16302+345588+15588+116363(Top 61%)5788(Top 51%)5788(Top 119%)
21M21.00 mi1.00 mi16380-785643-555643-5517721(Top 67%)6590(Top 58%)6590(Top 135%)
35K21.75 mi0.75 mi16361+195638+55638+516262(Top 61%)5847(Top 51%)5847(Top 120%)
23M23.00 mi1.25 mi16709-3485852-2145852-21420244(Top 76%)8100(Top 71%)8100(Top 166%)
24M24.00 mi1.00 mi16582+1275795+575795+5713916(Top 52%)4631(Top 41%)4631(Top 95%)
40K24.85 mi0.85 mi16502+805772+235772+2315073(Top 57%)5342(Top 47%)5342(Top 109%)
25.2M25.20 mi0.35 mi16472+305760+125760+1215346(Top 58%)5507(Top 48%)5507(Top 113%)
Finish26.22 mi1.02 mi16391+815713+475713+4714818(Top 56%)5167(Top 45%)5167(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15111

Females

4743

F18-39

4743

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13611

Females

3800

F18-39

3800

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15111

Females

4743

F18-39

4743

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

19011

Females

7089

F18-39

7089

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

17039

Females

5918

F18-39

5918

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20104

Females

7750

F18-39

7750

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16740

Females

5914

F18-39

5914

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16363

Females

5788

F18-39

5788

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17721

Females

6590

F18-39

6590

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

16262

Females

5847

F18-39

5847

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20244

Females

8100

F18-39

8100

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13916

Females

4631

F18-39

4631

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15073

Females

5342

F18-39

5342

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

15346

Females

5507

F18-39

5507

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

14818

Females

5167

F18-39

5167

Passing Analysis

Category:
Athletes Passed
939
Passed By
5326
Net Change
-4387
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12004
5K → 10K89849-760#12004#12764
10K → 15K38853-815#12764#13579
15K → 20K191621-1602#13579#15181
20K → Half16114-98#15181#15279
Half → 25K17984-967#15279#16246
25K → 30K145235-90#16246#16336
30K → 20M9662+34#16336#16302
20M → 21M55133-78#16302#16380
21M → 35K5435+19#16380#16361
35K → 23M19367-348#16361#16709
23M → 24M14013+127#16709#16582
24M → 40K10222+80#16582#16502
40K → 25.2M4111+30#16502#16472
25.2M → Finish10827+81#16472#16391
TOTALS9395326-4387
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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