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BOSTON MARATHON 2023

Karrine Spiller

Bib: 22551•F

WI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
8:51/mi
27:30
↑ 97↓ 3451.5%
10K· 6.21 mi
8:55/mi
55:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:22:40
↑ 67↓ 78
20K· 12.43 mi
9:00/mi
1:50:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:56:40
↑ 19↓ 370.5%
25K· 15.53 mi
9:01/mi
2:18:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:48:50
↑ 181↓ 1480.2%
20M
11:00/mi
3:03:47
↑ 64↓ 500.2%
21M
9:50/mi
3:13:37
↑ 106↓ 241.6%
35K· 21.75 mi
10:19/mi
3:21:20
↑ 17↓ 861.7%
23M
11:34/mi
3:35:49
↑ 23↓ 630.6%
24M
10:49/mi
3:46:38
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:54:35
↓ 200.3%
25.2M
9:52/mi
3:57:59
↑ 13↓ 160.2%
Finish· 26.22 mi
8:44/mi
4:06:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:40
Pace8:54 /mi
2nd Half
Distance13.11 mi
Time2:10:13
Pace9:56 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1927:308:5127:30
8:51
-
10K
6.21 mi11:49:0155:128:5327:42
8:55
+0:04
15K
9.32 mi12:16:291:22:408:5227:28
8:50
-0:05
20K
12.43 mi12:44:271:50:388:5427:58
9:00
+0:10
Half
13.11 mi12:50:291:56:408:546:02
8:51
-0:09
25K
15.53 mi13:12:212:18:328:5521:52
9:01
+0:10
30K
18.64 mi13:42:392:48:509:0330:18
9:45
+0:44
20M
20.00 mi13:57:363:03:479:1114:57
11:00
+1:15
21M
21.00 mi14:07:263:13:379:139:50
9:50
-1:10
35K
21.75 mi14:15:093:21:209:157:43
10:19
+0:29
23M
23.00 mi14:29:383:35:499:2314:29
11:34
+1:15
24M
24.00 mi14:40:273:46:389:2710:49
10:49
-0:45
40K
24.85 mi14:48:243:54:359:267:57
9:18
-1:31
25.2M
25.20 mi14:51:483:57:599:273:24
9:52
+0:34
Finish
26.22 mi15:00:424:06:539:258:54
8:44
-1:08

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

8:44 /mi

Average Pace

9:25 /mi

Slowest Pace

11:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:09:54

28% of race

Time at Steady Pace

1:25:29

35% of race

Time at Slower Pace

1:31:30

37% of race

Average Pace: 9:25 /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 mi11:21:1927:308:5127:30
8:51
#19754
10K
6.21 mi11:49:0155:128:5327:42
8:55
#20117
15K
9.32 mi12:16:291:22:408:5227:28
8:50
#19974
20K
12.43 mi12:44:271:50:388:5427:58
9:00
#19872
Half
13.11 mi12:50:291:56:408:546:02
8:51
#19850
25K
15.53 mi13:12:212:18:328:5521:52
9:01
#19717
30K
18.64 mi13:42:392:48:509:0330:18
9:45
#19866
20M
20.00 mi13:57:363:03:479:1114:57
11:00
#20213
21M
21.00 mi14:07:263:13:379:139:50
9:50
#20034
35K
21.75 mi14:15:093:21:209:157:43
10:19
#20132
23M
23.00 mi14:29:383:35:499:2314:29
11:34
#20409
24M
24.00 mi14:40:273:46:389:2710:49
10:49
#20530
40K
24.85 mi14:48:243:54:359:267:57
9:18
#20418
25.2M
25.20 mi14:51:483:57:599:273:24
9:52
#20367
Finish
26.22 mi15:00:424:06:539:258:54
8:44
#20254
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi197547668766819751(Top 74%)7538(Top 66%)7538(Top 625%)
10K6.21 mi3.10 mi20117-3637832-1647832-16420501(Top 77%)7980(Top 70%)7980(Top 661%)
15K9.32 mi3.11 mi19974+1437724+1087724+10819751(Top 74%)7538(Top 66%)7538(Top 625%)
20K12.43 mi3.11 mi19872+1027644+807644+8019719(Top 74%)7508(Top 66%)7508(Top 622%)
Half13.11 mi0.68 mi19850+227634+107634+1019774(Top 74%)7545(Top 66%)7545(Top 625%)
25K15.53 mi2.42 mi19717+1337550+847550+8419069(Top 72%)7173(Top 63%)7173(Top 594%)
30K18.64 mi3.11 mi19866-1497655-1057655-10520308(Top 76%)7945(Top 70%)7945(Top 658%)
20M20.00 mi1.36 mi20213-3477866-2117866-21122713(Top 85%)9368(Top 82%)9368(Top 776%)
21M21.00 mi1.00 mi20034+1797768+987768+9817410(Top 65%)6443(Top 56%)6443(Top 534%)
35K21.75 mi0.75 mi20132-987833-657833-6522033(Top 83%)9064(Top 79%)9064(Top 751%)
23M23.00 mi1.25 mi20409-2778001-1688001-16823368(Top 88%)9784(Top 86%)9784(Top 811%)
24M24.00 mi1.00 mi20530-1218078-778078-7722690(Top 85%)9463(Top 83%)9463(Top 784%)
40K24.85 mi0.85 mi20418+1128020+588020+5817554(Top 66%)6719(Top 59%)6719(Top 557%)
25.2M25.20 mi0.35 mi20367+518002+188002+1816896(Top 63%)6387(Top 56%)6387(Top 529%)
Finish26.22 mi1.02 mi20254+1137945+577945+5716708(Top 63%)6221(Top 54%)6221(Top 515%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19751

Females

7538

F50-54

7538

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

20501

Females

7980

F50-54

7980

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19751

Females

7538

F50-54

7538

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

19719

Females

7508

F50-54

7508

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19774

Females

7545

F50-54

7545

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

19069

Females

7173

F50-54

7173

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

20308

Females

7945

F50-54

7945

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

22713

Females

9368

F50-54

9368

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17410

Females

6443

F50-54

6443

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

22033

Females

9064

F50-54

9064

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23368

Females

9784

F50-54

9784

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22690

Females

9463

F50-54

9463

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17554

Females

6719

F50-54

6719

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16896

Females

6387

F50-54

6387

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16708

Females

6221

F50-54

6221

Passing Analysis

Category:
Athletes Passed
1535
Passed By
2035
Net Change
-500
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19754
5K → 10K164527-363#19754#20117
10K → 15K263120+143#20117#19974
15K → 20K223121+102#19974#19872
20K → Half4018+22#19872#19850
Half → 25K18552+133#19850#19717
25K → 30K115264-149#19717#19866
30K → 20M21368-347#19866#20213
20M → 21M18910+179#20213#20034
21M → 35K20118-98#20034#20132
35K → 23M15292-277#20132#20409
23M → 24M16137-121#20409#20530
24M → 40K1164+112#20530#20418
40K → 25.2M532+51#20418#20367
25.2M → Finish1152+113#20367#20254
TOTALS15352035-500
📊

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