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BOSTON MARATHON 2023

Kathryn Williams

OH

Bib: 10361 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 28%
Gender (Female)
#0 / 11423
Top 9%
Masters (Masters Women)
#0 / 6539
Top 3%
Division (F40-44)
#0 / 1878
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:26/mi
23:07
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:15/mi
45:37
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:13/mi
1:08:03
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:15/mi
1:30:36
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:15/mi
1:35:33
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:21/mi
1:53:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:37/mi
2:17:02
↑ 181↓ 1480.2%
138 ft elev
20M
7:41/mi
2:27:29
↑ 64↓ 500.2%
148 ft elev
21M
8:04/mi
2:35:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:25/mi
2:41:06
↑ 17↓ 861.7%
156 ft elev
23M
7:32/mi
2:50:32
↑ 23↓ 630.6%
116 ft elev
24M
7:19/mi
2:57:51
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:20/mi
3:04:07
↓ 200.3%
20 ft elev
25.2M
7:44/mi
3:06:47
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:03/mi
3:13:58
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:33
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:38:25
Pace7:30 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:2123:077:2623:07
7:26
-
10K
6.21 mi11:11:5145:377:2022:30
7:15
-0:11
15K
9.32 mi11:34:171:08:037:1822:26
7:13
-0:02
20K
12.43 mi11:56:501:30:367:1722:33
7:15
+0:02
Half
13.11 mi12:01:471:35:337:174:57
7:15
0:00
25K
15.53 mi12:19:361:53:227:1817:49
7:21
+0:06
30K
18.64 mi12:43:162:17:027:2123:40
7:37
+0:16
20M
20.00 mi12:53:432:27:297:2210:27
7:41
+0:04
21M
21.00 mi13:01:472:35:337:248:04
8:04
+0:23
35K
21.75 mi13:07:202:41:067:245:33
7:25
-0:39
23M
23.00 mi13:16:462:50:327:259:26
7:32
+0:07
24M
24.00 mi13:24:052:57:517:257:19
7:19
-0:13
40K
24.85 mi13:30:213:04:077:246:16
7:20
+0:01
25.2M
25.20 mi13:33:013:06:477:252:40
7:44
+0:24
Finish
26.22 mi13:40:123:13:587:247:11
7:03
-0:41

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

7:03 /mi

Average Pace

7:24 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:54

96% of race

Time at Steady Pace

8:04

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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 mi10:49:2123:077:2623:07
7:26
#9155
10K
6.21 mi11:11:5145:377:2022:30
7:15
#8736
15K
9.32 mi11:34:171:08:037:1822:26
7:13
#8474
20K
12.43 mi11:56:501:30:367:1722:33
7:15
#8183
Half
13.11 mi12:01:471:35:337:174:57
7:15
#8183
25K
15.53 mi12:19:361:53:227:1817:49
7:21
#8056
30K
18.64 mi12:43:162:17:027:2123:40
7:37
#8026
20M
20.00 mi12:53:432:27:297:2210:27
7:41
#7969
21M
21.00 mi13:01:472:35:337:248:04
8:04
#7927
35K
21.75 mi13:07:202:41:067:245:33
7:25
#7916
23M
23.00 mi13:16:462:50:327:259:26
7:32
#7804
24M
24.00 mi13:24:052:57:517:257:19
7:19
#7706
40K
24.85 mi13:30:213:04:077:246:16
7:20
#7602
25.2M
25.20 mi13:33:013:06:477:252:40
7:44
#7547
Finish
26.22 mi13:40:123:13:587:247:11
7:03
#7436
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi9155144914497948(Top 30%)1051(Top 9%)1051(Top 56%)
10K6.21 mi3.10 mi8736+4191301+1481301+1488428(Top 32%)1201(Top 11%)1201(Top 64%)
15K9.32 mi3.11 mi8474+2621208+931208+937948(Top 30%)1051(Top 9%)1051(Top 56%)
20K12.43 mi3.11 mi8183+2911114+941114+947506(Top 28%)934(Top 8%)934(Top 50%)
Half13.11 mi0.68 mi81831115-11115-18293(Top 31%)1198(Top 10%)1198(Top 64%)
25K15.53 mi2.42 mi8056+1271094+211094+217620(Top 29%)1057(Top 9%)1057(Top 56%)
30K18.64 mi3.11 mi8026+301126-321126-328071(Top 30%)1335(Top 12%)1335(Top 71%)
20M20.00 mi1.36 mi7969+571120+61120+68121(Top 31%)1442(Top 13%)1442(Top 77%)
21M21.00 mi1.00 mi7927+421118+21118+27807(Top 29%)1422(Top 12%)1422(Top 76%)
35K21.75 mi0.75 mi7916+111130-121130-127957(Top 30%)1464(Top 13%)1464(Top 78%)
23M23.00 mi1.25 mi7804+1121114+161114+166649(Top 25%)1040(Top 9%)1040(Top 55%)
24M24.00 mi1.00 mi7706+981096+181096+186516(Top 24%)1077(Top 9%)1077(Top 57%)
40K24.85 mi0.85 mi7602+1041077+191077+195674(Top 21%)864(Top 8%)864(Top 46%)
25.2M25.20 mi0.35 mi7547+551069+81069+85127(Top 19%)772(Top 7%)772(Top 41%)
Finish26.22 mi1.02 mi7436+1111060+91060+95547(Top 21%)926(Top 8%)926(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7948

Females

1051

F40-44

1051

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8428

Females

1201

F40-44

1201

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7948

Females

1051

F40-44

1051

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7506

Females

934

F40-44

934

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8293

Females

1198

F40-44

1198

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7620

Females

1057

F40-44

1057

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8071

Females

1335

F40-44

1335

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8121

Females

1442

F40-44

1442

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7807

Females

1422

F40-44

1422

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

7957

Females

1464

F40-44

1464

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6649

Females

1040

F40-44

1040

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6516

Females

1077

F40-44

1077

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5674

Females

864

F40-44

864

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5127

Females

772

F40-44

772

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5547

Females

926

F40-44

926

Passing Analysis

Category:
Athletes Passed
2278
Passed By
559
Net Change
+1719
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9155
5K → 10K524105+419#9155#8736
10K → 15K29836+262#8736#8474
15K → 20K30615+291#8474#8183
20K → Half21210#8183#8183
Half → 25K16942+127#8183#8056
25K → 30K144114+30#8056#8026
30K → 20M11154+57#8026#7969
20M → 21M9351+42#7969#7927
21M → 35K5140+11#7927#7916
35K → 23M13321+112#7916#7804
23M → 24M12123+98#7804#7706
24M → 40K11713+104#7706#7602
40K → 25.2M627+55#7602#7547
25.2M → Finish12817+111#7547#7436
TOTALS2278559+1719
📊

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