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BOSTON MARATHON 2023

Laurie Knowles

Bib: 1999•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 5%
Gender (Female)
#0 / 11423
Top 0.5%
Masters (Masters Women)
#0 / 6539
Top 0.1%
Division (F45-49)
#0 / 1817
Top 0.1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:45
Rank: #1643
Start → 5K
19:45 | 6:21/mi
10K· 6.21 mi
39:10
Rank: #1584 (+59)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:30
Rank: #1479 (+105)
10K → 15K
19:20 | 6:13/mi
20K· 12.43 mi
1:18:04
Rank: #1434 (+45)
15K → 20K
19:34 | 6:18/mi
Half· 13.11 mi
1:22:16
Rank: #1416 (+18)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:37:23
Rank: #1346 (+70)
Half → 25K
15:07 | 6:14/mi
30K· 18.64 mi
1:57:03
Rank: #1260 (+86)
25K → 30K
19:40 | 6:20/mi
20M
2:05:46
Rank: #1243 (+17)
30K → 20M
8:43 | 6:25/mi
21M
2:12:38
Rank: #1250 (-7)
20M → 21M
6:52 | 6:52/mi
35K· 21.75 mi
2:17:17
Rank: #1236 (+14)
21M → 35K
4:39 | 6:13/mi
23M
2:25:23
Rank: #1219 (+17)
35K → 23M
8:06 | 6:28/mi
24M
2:31:37
Rank: #1194 (+25)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:37:05
Rank: #1185 (+9)
24M → 40K
5:28 | 6:24/mi
25.2M
2:39:29
Rank: #1186 (-1)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:46:00
Rank: #1205 (-19)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:16
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:23:44
Pace6:23 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2319:456:2119:45
6:21
-
10K
6.21 mi10:39:4839:106:1819:25
6:15
-0:06
15K
9.32 mi10:59:0858:306:1719:20
6:13
-0:02
20K
12.43 mi11:18:421:18:046:1719:34
6:18
+0:05
Half
13.11 mi11:22:541:22:166:174:12
6:09
-0:09
25K
15.53 mi11:38:011:37:236:1615:07
6:14
+0:05
30K
18.64 mi11:57:411:57:036:1719:40
6:20
+0:06
20M
20.00 mi12:06:242:05:466:178:43
6:25
+0:05
21M
21.00 mi12:13:162:12:386:196:52
6:52
+0:27
35K
21.75 mi12:17:552:17:176:194:39
6:13
-0:39
23M
23.00 mi12:26:012:25:236:198:06
6:28
+0:15
24M
24.00 mi12:32:152:31:376:196:14
6:14
-0:14
40K
24.85 mi12:37:432:37:056:195:28
6:24
+0:10
25.2M
25.20 mi12:40:072:39:296:202:24
6:58
+0:34
Finish
26.22 mi12:46:382:46:006:206:31
6:24
-0:34

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

6:09 /mi

Average Pace

6:20 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:44

94% of race

Time at Steady Pace

9:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:20 /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 mi10:20:2319:456:2119:45
6:21
#1643
10K
6.21 mi10:39:4839:106:1819:25
6:15
#1584
15K
9.32 mi10:59:0858:306:1719:20
6:13
#1479
20K
12.43 mi11:18:421:18:046:1719:34
6:18
#1434
Half
13.11 mi11:22:541:22:166:174:12
6:09
#1416
25K
15.53 mi11:38:011:37:236:1615:07
6:14
#1346
30K
18.64 mi11:57:411:57:036:1719:40
6:20
#1260
20M
20.00 mi12:06:242:05:466:178:43
6:25
#1243
21M
21.00 mi12:13:162:12:386:196:52
6:52
#1250
35K
21.75 mi12:17:552:17:176:194:39
6:13
#1236
23M
23.00 mi12:26:012:25:236:198:06
6:28
#1219
24M
24.00 mi12:32:152:31:376:196:14
6:14
#1194
40K
24.85 mi12:37:432:37:056:195:28
6:24
#1185
25.2M
25.20 mi12:40:072:39:296:202:24
6:58
#1186
Finish
26.22 mi12:46:382:46:006:206:31
6:24
#1205
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi164377771329(Top 5%)61(Top 0.5%)61(Top 3%)
10K6.21 mi3.10 mi1584+5971+671+61565(Top 6%)67(Top 0.6%)67(Top 4%)
15K9.32 mi3.11 mi1479+10567+467+41329(Top 5%)61(Top 0.5%)61(Top 3%)
20K12.43 mi3.11 mi1434+4566+166+11380(Top 5%)60(Top 0.5%)60(Top 3%)
Half13.11 mi0.68 mi1416+1866661232(Top 5%)51(Top 0.4%)51(Top 3%)
25K15.53 mi2.42 mi1346+7061+561+51102(Top 4%)52(Top 0.5%)52(Top 3%)
30K18.64 mi3.11 mi1260+8655+655+61003(Top 4%)49(Top 0.4%)49(Top 3%)
20M20.00 mi1.36 mi1243+1755551192(Top 4%)58(Top 0.5%)58(Top 3%)
21M21.00 mi1.00 mi1250-755551666(Top 6%)78(Top 0.7%)78(Top 4%)
35K21.75 mi0.75 mi1236+1455551324(Top 5%)65(Top 0.6%)65(Top 4%)
23M23.00 mi1.25 mi1219+1755551338(Top 5%)69(Top 0.6%)69(Top 4%)
24M24.00 mi1.00 mi1194+2554+154+11154(Top 4%)59(Top 0.5%)59(Top 3%)
40K24.85 mi0.85 mi1185+955-155-11210(Top 5%)69(Top 0.6%)69(Top 4%)
25.2M25.20 mi0.35 mi1186-155551688(Top 6%)98(Top 0.9%)98(Top 5%)
Finish26.22 mi1.02 mi1205-1956-156-12023(Top 8%)135(Top 1%)135(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1329

Females

61

F45-49

61

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1565

Females

67

F45-49

67

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1329

Females

61

F45-49

61

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1380

Females

60

F45-49

60

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1232

Females

51

F45-49

51

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1102

Females

52

F45-49

52

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1003

Females

49

F45-49

49

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1192

Females

58

F45-49

58

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1666

Females

78

F45-49

78

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1324

Females

65

F45-49

65

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1338

Females

69

F45-49

69

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1154

Females

59

F45-49

59

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1210

Females

69

F45-49

69

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1688

Females

98

F45-49

98

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2023

Females

135

F45-49

135

Passing Analysis

Category:
Athletes Passed
667
Passed By
229
Net Change
+438
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1643
5K → 10K11960+59#1643#1584
10K → 15K12116+105#1584#1479
15K → 20K7025+45#1479#1434
20K → Half224+18#1434#1416
Half → 25K744+70#1416#1346
25K → 30K915+86#1346#1260
30K → 20M2912+17#1260#1243
20M → 21M1926-7#1243#1250
21M → 35K239+14#1250#1236
35K → 23M3013+17#1236#1219
23M → 24M294+25#1219#1194
24M → 40K1910+9#1194#1185
40K → 25.2M78-1#1185#1186
25.2M → Finish1433-19#1186#1205
TOTALS667229+438
📊

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