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BOSTON MARATHON 2023

Emma Brunskill

Bib: 20704•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:06
Rank: #19040
Start → 5K
8:43/mi
27:06 split
10K· 6.21 mi
53:34
Rank: #18639 (+401)
5K → 10K
8:31/mi
26:28 split
15K· 9.32 mi
1:19:30
Rank: #18050 (+589)
10K → 15K
8:21/mi
25:56 split
20K· 12.43 mi
1:46:06
Rank: #17815 (+235)
15K → 20K
8:34/mi
26:36 split
Half· 13.11 mi
1:51:56
Rank: #17816 (-1)
20K → Half
8:33/mi
5:50 split
25K· 15.53 mi
2:13:08
Rank: #17757 (+59)
Half → 25K
8:45/mi
21:12 split
30K· 18.64 mi
2:41:30
Rank: #17740 (+17)
25K → 30K
9:08/mi
28:22 split
20M
2:54:34
Rank: #17900 (-160)
30K → 20M
9:37/mi
13:04 split
21M
3:05:21
Rank: #18127 (-227)
20M → 21M
10:47/mi
10:47 split
35K· 21.75 mi
3:12:18
Rank: #18187 (-60)
21M → 35K
9:17/mi
6:57 split
23M
3:25:31
Rank: #18492 (-305)
35K → 23M
10:33/mi
13:13 split
24M
3:35:33
Rank: #18664 (-172)
23M → 24M
10:02/mi
10:02 split
40K· 24.85 mi
3:44:54
Rank: #18901 (-237)
24M → 40K
10:56/mi
9:21 split
25.2M
3:48:47
Rank: #18962 (-61)
40K → 25.2M
11:16/mi
3:53 split
Finish· 26.22 mi
3:59:15
Rank: #19184 (-222)
25.2M → Finish
10:16/mi
10:28 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:56
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:07:19
Pace9:43 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:3427:068:4327:06
8:43
-
10K
6.21 mi11:46:0253:348:3726:28
8:31
-0:12
15K
9.32 mi12:11:581:19:308:3225:56
8:21
-0:10
20K
12.43 mi12:38:341:46:068:3226:36
8:34
+0:13
Half
13.11 mi12:44:241:51:568:325:50
8:33
-0:01
25K
15.53 mi13:05:362:13:088:3421:12
8:45
+0:12
30K
18.64 mi13:33:582:41:308:4028:22
9:08
+0:23
20M
20.00 mi13:47:022:54:348:4413:04
9:37
+0:29
21M
21.00 mi13:57:493:05:218:5010:47
10:47
+1:10
35K
21.75 mi14:04:463:12:188:516:57
9:17
-1:30
23M
23.00 mi14:17:593:25:318:5613:13
10:33
+1:16
24M
24.00 mi14:28:013:35:338:5910:02
10:02
-0:31
40K
24.85 mi14:37:223:44:549:039:21
10:56
+0:54
25.2M
25.20 mi14:41:153:48:479:053:53
11:16
+0:20
Finish
26.22 mi14:51:433:59:159:0810:28
10:16
-1:00

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

8:21 /mi

Average Pace

9:08 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:08

56% of race

Time at Steady Pace

48:23

20% of race

Time at Slower Pace

57:44

24% of race

Average Pace: 9:07 /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 mi11:19:3427:068:4327:06
8:43
#19040
10K
6.21 mi11:46:0253:348:3726:28
8:31
#18639
15K
9.32 mi12:11:581:19:308:3225:56
8:21
#18050
20K
12.43 mi12:38:341:46:068:3226:36
8:34
#17815
Half
13.11 mi12:44:241:51:568:325:50
8:33
#17816
25K
15.53 mi13:05:362:13:088:3421:12
8:45
#17757
30K
18.64 mi13:33:582:41:308:4028:22
9:08
#17740
20M
20.00 mi13:47:022:54:348:4413:04
9:37
#17900
21M
21.00 mi13:57:493:05:218:5010:47
10:47
#18127
35K
21.75 mi14:04:463:12:188:516:57
9:17
#18187
23M
23.00 mi14:17:593:25:318:5613:13
10:33
#18492
24M
24.00 mi14:28:013:35:338:5910:02
10:02
#18664
40K
24.85 mi14:37:223:44:549:039:21
10:56
#18901
25.2M
25.20 mi14:41:153:48:479:053:53
11:16
#18962
Finish
26.22 mi14:51:433:59:159:0810:28
10:16
#19184
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi190407226722616846(Top 63%)5826(Top 51%)5826(Top 310%)
10K6.21 mi3.10 mi18639+4016906+3206906+32018378(Top 69%)6708(Top 59%)6708(Top 357%)
15K9.32 mi3.11 mi18050+5896559+3476559+34716846(Top 63%)5826(Top 51%)5826(Top 310%)
20K12.43 mi3.11 mi17815+2356416+1436416+14317265(Top 65%)6088(Top 53%)6088(Top 324%)
Half13.11 mi0.68 mi17816-16411+56411+518091(Top 68%)6555(Top 57%)6555(Top 349%)
25K15.53 mi2.42 mi17757+596387+246387+2417653(Top 66%)6376(Top 56%)6376(Top 340%)
30K18.64 mi3.11 mi17740+176399-126399-1217850(Top 67%)6559(Top 57%)6559(Top 349%)
20M20.00 mi1.36 mi17900-1606526-1276526-12719289(Top 72%)7450(Top 65%)7450(Top 397%)
21M21.00 mi1.00 mi18127-2276676-1506676-15020340(Top 76%)8108(Top 71%)8108(Top 432%)
35K21.75 mi0.75 mi18187-606716-406716-4019127(Top 72%)7457(Top 65%)7457(Top 397%)
23M23.00 mi1.25 mi18492-3056894-1786894-17821454(Top 81%)8763(Top 77%)8763(Top 467%)
24M24.00 mi1.00 mi18664-1727002-1087002-10820885(Top 78%)8480(Top 74%)8480(Top 452%)
40K24.85 mi0.85 mi18901-2377144-1427144-14222221(Top 83%)9247(Top 81%)9247(Top 492%)
25.2M25.20 mi0.35 mi18962-617185-417185-4121054(Top 79%)8613(Top 75%)8613(Top 459%)
Finish26.22 mi1.02 mi19184-2227314-1297314-12922468(Top 84%)9363(Top 82%)9363(Top 499%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16846

Females

5826

F40-44

5826

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18378

Females

6708

F40-44

6708

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16846

Females

5826

F40-44

5826

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17265

Females

6088

F40-44

6088

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

18091

Females

6555

F40-44

6555

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

17653

Females

6376

F40-44

6376

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17850

Females

6559

F40-44

6559

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19289

Females

7450

F40-44

7450

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

20340

Females

8108

F40-44

8108

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19127

Females

7457

F40-44

7457

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21454

Females

8763

F40-44

8763

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20885

Females

8480

F40-44

8480

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22221

Females

9247

F40-44

9247

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21054

Females

8613

F40-44

8613

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22468

Females

9363

F40-44

9363

Passing Analysis

Category:
Athletes Passed
2100
Passed By
2244
Net Change
-144
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19040
5K → 10K609208+401#19040#18639
10K → 15K61728+589#18639#18050
15K → 20K30368+235#18050#17815
20K → Half3233-1#17815#17816
Half → 25K15495+59#17816#17757
25K → 30K189172+17#17757#17740
30K → 20M54214-160#17740#17900
20M → 21M39266-227#17900#18127
21M → 35K3191-60#18127#18187
35K → 23M19324-305#18187#18492
23M → 24M21193-172#18492#18664
24M → 40K9246-237#18664#18901
40K → 25.2M1475-61#18901#18962
25.2M → Finish9231-222#18962#19184
TOTALS21002244-144
📊

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