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BOSTON MARATHON 2023

Emily Knous

Bib: 25635•F

CA

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
28:28
Rank: #21094
Start → 5K
28:28 | 9:10/mi
10K· 6.21 mi
56:15
Rank: #20871 (+223)
5K → 10K
27:47 | 8:57/mi
15K· 9.32 mi
1:25:16
Rank: #21201 (-330)
10K → 15K
29:01 | 9:20/mi
20K· 12.43 mi
1:54:08
Rank: #21139 (+62)
15K → 20K
28:52 | 9:17/mi
Half· 13.11 mi
2:00:44
Rank: #21215 (-76)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:24:57
Rank: #21379 (-164)
Half → 25K
24:13 | 9:59/mi
30K· 18.64 mi
2:58:11
Rank: #21645 (-266)
25K → 30K
33:14 | 10:42/mi
20M
3:13:12
Rank: #21765 (-120)
30K → 20M
15:01 | 11:03/mi
21M
3:24:45
Rank: #21796 (-31)
20M → 21M
11:33 | 11:33/mi
35K· 21.75 mi
3:33:06
Rank: #21892 (-96)
21M → 35K
8:21 | 11:10/mi
23M
3:47:33
Rank: #21995 (-103)
35K → 23M
14:27 | 11:32/mi
24M
3:58:39
Rank: #22044 (-49)
23M → 24M
11:06 | 11:06/mi
40K· 24.85 mi
4:08:04
Rank: #22048 (-4)
24M → 40K
9:25 | 11:01/mi
25.2M
4:12:10
Rank: #22067 (-19)
40K → 25.2M
4:06 | 11:53/mi
Finish· 26.22 mi
4:22:12
Rank: #22036 (+31)
25.2M → Finish
10:02 | 9:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:44
Pace9:13 /mi
2nd Half
Distance13.11 mi
Time2:21:28
Pace10:47 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4528:289:1028:28
9:10
-
10K
6.21 mi12:12:3256:159:0327:47
8:57
-0:13
15K
9.32 mi12:41:331:25:169:0929:01
9:20
+0:23
20K
12.43 mi13:10:251:54:089:1128:52
9:17
-0:03
Half
13.11 mi13:17:012:00:449:136:36
9:40
+0:23
25K
15.53 mi13:41:142:24:579:2024:13
9:59
+0:19
30K
18.64 mi14:14:282:58:119:3433:14
10:42
+0:43
20M
20.00 mi14:29:293:13:129:4015:01
11:03
+0:21
21M
21.00 mi14:41:023:24:459:4511:33
11:33
+0:30
35K
21.75 mi14:49:233:33:069:488:21
11:10
-0:23
23M
23.00 mi15:03:503:47:339:5414:27
11:32
+0:22
24M
24.00 mi15:14:563:58:399:5711:06
11:06
-0:26
40K
24.85 mi15:24:214:08:049:599:25
11:01
-0:05
25.2M
25.20 mi15:28:274:12:1010:004:06
11:53
+0:52
Finish
26.22 mi15:38:294:22:1210:0010:02
9:51
-2:02

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

8:57 /mi

Average Pace

10:00 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:59

59% of race

Time at Steady Pace

1:17:07

29% of race

Time at Slower Pace

30:06

11% of race

Average Pace: 10:00 /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 mi11:44:4528:289:1028:28
9:10
#21094
10K
6.21 mi12:12:3256:159:0327:47
8:57
#20871
15K
9.32 mi12:41:331:25:169:0929:01
9:20
#21201
20K
12.43 mi13:10:251:54:089:1128:52
9:17
#21139
Half
13.11 mi13:17:012:00:449:136:36
9:40
#21215
25K
15.53 mi13:41:142:24:579:2024:13
9:59
#21379
30K
18.64 mi14:14:282:58:119:3433:14
10:42
#21645
20M
20.00 mi14:29:293:13:129:4015:01
11:03
#21765
21M
21.00 mi14:41:023:24:459:4511:33
11:33
#21796
35K
21.75 mi14:49:233:33:069:488:21
11:10
#21892
23M
23.00 mi15:03:503:47:339:5414:27
11:32
#21995
24M
24.00 mi15:14:563:58:399:5711:06
11:06
#22044
40K
24.85 mi15:24:214:08:049:599:25
11:01
#22048
25.2M
25.20 mi15:28:274:12:1010:004:06
11:53
#22067
Finish
26.22 mi15:38:294:22:1210:0010:02
9:51
#22036
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi210948421842121782(Top 82%)8664(Top 76%)8664(Top 177%)
10K6.21 mi3.10 mi20871+2238248+1738248+17320662(Top 78%)8073(Top 71%)8073(Top 165%)
15K9.32 mi3.11 mi21201-3308388-1408388-14021782(Top 82%)8664(Top 76%)8664(Top 177%)
20K12.43 mi3.11 mi21139+628349+398349+3920940(Top 79%)8202(Top 72%)8202(Top 168%)
Half13.11 mi0.68 mi21215-768384-358384-3522600(Top 85%)9131(Top 80%)9131(Top 187%)
25K15.53 mi2.42 mi21379-1648479-958479-9522199(Top 83%)8945(Top 78%)8945(Top 183%)
30K18.64 mi3.11 mi21645-2668636-1578636-15722604(Top 85%)9245(Top 81%)9245(Top 189%)
20M20.00 mi1.36 mi21765-1208715-798715-7922789(Top 86%)9400(Top 82%)9400(Top 192%)
21M21.00 mi1.00 mi21796-318740-258740-2521969(Top 83%)8972(Top 79%)8972(Top 184%)
35K21.75 mi0.75 mi21892-968794-548794-5423586(Top 89%)9925(Top 87%)9925(Top 203%)
23M23.00 mi1.25 mi21995-1038863-698863-6923327(Top 88%)9761(Top 85%)9761(Top 200%)
24M24.00 mi1.00 mi22044-498902-398902-3923236(Top 87%)9756(Top 85%)9756(Top 200%)
40K24.85 mi0.85 mi22048-48917-158917-1522398(Top 84%)9342(Top 82%)9342(Top 191%)
25.2M25.20 mi0.35 mi22067-198929-128929-1222313(Top 84%)9291(Top 81%)9291(Top 190%)
Finish26.22 mi1.02 mi22036+318920+98920+921316(Top 80%)8727(Top 76%)8727(Top 179%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21782

Females

8664

F18-39

8664

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

20662

Females

8073

F18-39

8073

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21782

Females

8664

F18-39

8664

15K→20K

9.3 - 12.4 mi

Top 79%
×5stories
+106ft-86ft

Overall

20940

Females

8202

F18-39

8202

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22600

Females

9131

F18-39

9131

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22199

Females

8945

F18-39

8945

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22604

Females

9245

F18-39

9245

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22789

Females

9400

F18-39

9400

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

21969

Females

8972

F18-39

8972

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23586

Females

9925

F18-39

9925

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

23327

Females

9761

F18-39

9761

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

23236

Females

9756

F18-39

9756

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22398

Females

9342

F18-39

9342

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22313

Females

9291

F18-39

9291

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21316

Females

8727

F18-39

8727

Passing Analysis

Category:
Athletes Passed
1000
Passed By
1942
Net Change
-942
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21094
5K → 10K410187+223#21094#20871
10K → 15K56386-330#20871#21201
15K → 20K176114+62#21201#21139
20K → Half581-76#21139#21215
Half → 25K55219-164#21215#21379
25K → 30K65331-266#21379#21645
30K → 20M29149-120#21645#21765
20M → 21M4172-31#21765#21796
21M → 35K12108-96#21796#21892
35K → 23M28131-103#21892#21995
23M → 24M2574-49#21995#22044
24M → 40K4044-4#22044#22048
40K → 25.2M1231-19#22048#22067
25.2M → Finish4615+31#22067#22036
TOTALS10001942-942
📊

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