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BOSTON MARATHON 2023

Karen Smith

Bib: 11190•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 15%
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
7:20/mi
22:47
↑ 97↓ 3451.5%
10K· 6.21 mi
7:14/mi
45:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:09:23
↑ 67↓ 78
20K· 12.43 mi
7:21/mi
1:32:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:37:11
↑ 19↓ 370.5%
25K· 15.53 mi
7:32/mi
1:55:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:20:01
↑ 181↓ 1480.2%
20M
8:01/mi
2:30:54
↑ 64↓ 500.2%
21M
8:29/mi
2:39:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:45:12
↑ 17↓ 861.7%
23M
8:19/mi
2:55:37
↑ 23↓ 630.6%
24M
8:09/mi
3:03:46
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:10:40
↓ 200.3%
25.2M
8:42/mi
3:13:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:21:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:11
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:44:26
Pace7:58 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:3922:477:2022:47
7:20
-
10K
6.21 mi11:12:0645:147:1722:27
7:14
-0:06
15K
9.32 mi11:36:151:09:237:2724:09
7:46
+0:32
20K
12.43 mi11:59:051:32:137:2522:50
7:21
-0:25
Half
13.11 mi12:04:031:37:117:254:58
7:17
-0:04
25K
15.53 mi12:22:181:55:267:2618:15
7:32
+0:15
30K
18.64 mi12:46:532:20:017:3124:35
7:55
+0:23
20M
20.00 mi12:57:462:30:547:3310:53
8:01
+0:06
21M
21.00 mi13:06:152:39:237:358:29
8:29
+0:28
35K
21.75 mi13:12:042:45:127:365:49
7:46
-0:43
23M
23.00 mi13:22:292:55:377:3810:25
8:19
+0:33
24M
24.00 mi13:30:383:03:467:398:09
8:09
-0:10
40K
24.85 mi13:37:323:10:407:406:54
8:04
-0:05
25.2M
25.20 mi13:40:323:13:407:413:00
8:42
+0:38
Finish
26.22 mi13:48:293:21:377:427:57
7:48
-0:54

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

7:14 /mi

Average Pace

7:42 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:17

45% of race

Time at Steady Pace

1:13:23

36% of race

Time at Slower Pace

36:57

18% of race

Average Pace: 7:41 /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 mi10:49:3922:477:2022:47
7:20
#8349
10K
6.21 mi11:12:0645:147:1722:27
7:14
#8318
15K
9.32 mi11:36:151:09:237:2724:09
7:46
#9573
20K
12.43 mi11:59:051:32:137:2522:50
7:21
#9158
Half
13.11 mi12:04:031:37:117:254:58
7:17
#9118
25K
15.53 mi12:22:181:55:267:2618:15
7:32
#9069
30K
18.64 mi12:46:532:20:017:3124:35
7:55
#9246
20M
20.00 mi12:57:462:30:547:3310:53
8:01
#9319
21M
21.00 mi13:06:152:39:237:358:29
8:29
#9342
35K
21.75 mi13:12:042:45:127:365:49
7:46
#9369
23M
23.00 mi13:22:292:55:377:3810:25
8:19
#9500
24M
24.00 mi13:30:383:03:467:398:09
8:09
#9603
40K
24.85 mi13:37:323:10:407:406:54
8:04
#9597
25.2M
25.20 mi13:40:323:13:407:413:00
8:42
#9602
Finish
26.22 mi13:48:293:21:377:427:57
7:48
#9626
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi83491144114412490(Top 47%)3173(Top 28%)3173(Top 169%)
10K6.21 mi3.10 mi8318+311153-91153-98315(Top 31%)1153(Top 10%)1153(Top 61%)
15K9.32 mi3.11 mi9573-12551647-4941647-49412490(Top 47%)3173(Top 28%)3173(Top 169%)
20K12.43 mi3.11 mi9158+4151499+1481499+1488157(Top 31%)1163(Top 10%)1163(Top 62%)
Half13.11 mi0.68 mi9118+401485+141485+148535(Top 32%)1314(Top 12%)1314(Top 70%)
25K15.53 mi2.42 mi9069+491470+151470+158995(Top 34%)1555(Top 14%)1555(Top 83%)
30K18.64 mi3.11 mi9246-1771582-1121582-11210234(Top 38%)2269(Top 20%)2269(Top 121%)
20M20.00 mi1.36 mi9319-731644-621644-6210337(Top 39%)2383(Top 21%)2383(Top 127%)
21M21.00 mi1.00 mi9342-231672-281672-2810402(Top 39%)2573(Top 23%)2573(Top 137%)
35K21.75 mi0.75 mi9369-271699-271699-2710490(Top 39%)2590(Top 23%)2590(Top 138%)
23M23.00 mi1.25 mi9500-1311768-691768-6912039(Top 45%)3528(Top 31%)3528(Top 188%)
24M24.00 mi1.00 mi9603-1031843-751843-7512257(Top 46%)3717(Top 33%)3717(Top 198%)
40K24.85 mi0.85 mi9597+61867-241867-2410521(Top 40%)2883(Top 25%)2883(Top 154%)
25.2M25.20 mi0.35 mi9602-51887-201887-2010781(Top 40%)3055(Top 27%)3055(Top 163%)
Finish26.22 mi1.02 mi9626-241927-401927-4010696(Top 40%)3028(Top 27%)3028(Top 161%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12490

Females

3173

F40-44

3173

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

8315

Females

1153

F40-44

1153

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12490

Females

3173

F40-44

3173

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8157

Females

1163

F40-44

1163

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8535

Females

1314

F40-44

1314

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

8995

Females

1555

F40-44

1555

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10234

Females

2269

F40-44

2269

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10337

Females

2383

F40-44

2383

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10402

Females

2573

F40-44

2573

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10490

Females

2590

F40-44

2590

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12039

Females

3528

F40-44

3528

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12257

Females

3717

F40-44

3717

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10521

Females

2883

F40-44

2883

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10781

Females

3055

F40-44

3055

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10696

Females

3028

F40-44

3028

Passing Analysis

Category:
Athletes Passed
1397*
Passed By
2674
Net Change
-1277
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8349
5K → 10K244213+31#8349#8318
10K → 15K91264-1255#8318#9573
15K → 20K42712+415#9573#9158
20K → Half477+40#9158#9118
Half → 25K14192+49#9118#9069
25K → 30K116293-177#9069#9246
30K → 20M50123-73#9246#9319
20M → 21M82105-23#9319#9342
21M → 35K3865-27#9342#9369
35K → 23M52183-131#9369#9500
23M → 24M35138-103#9500#9603
24M → 40K57*51+6#9603#9597
40K → 25.2M3944-5#9597#9602
25.2M → Finish6084-24#9602#9626
TOTALS1397*2674-1277

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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