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BOSTON MARATHON 2023

Kathryn Waldron

Bib: 15904•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 (F60-64)
#0 / 527
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
8:36/mi
26:42
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
53:36
↑ 79↓ 1380.4%
15K· 9.32 mi
9:16/mi
1:22:24
↑ 67↓ 78
20K· 12.43 mi
10:06/mi
1:53:47
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
2:00:01
↑ 19↓ 370.5%
25K· 15.53 mi
9:39/mi
2:23:24
↑ 66↓ 880.2%
30K· 18.64 mi
10:13/mi
2:55:10
↑ 181↓ 1480.2%
20M
10:24/mi
3:09:18
↑ 64↓ 500.2%
21M
11:33/mi
3:20:51
↑ 106↓ 241.6%
35K· 21.75 mi
10:31/mi
3:28:43
↑ 17↓ 861.7%
23M
10:13/mi
3:41:30
↑ 23↓ 630.6%
24M
9:46/mi
3:51:16
↓ 821.3%
40K· 24.85 mi
10:02/mi
3:59:51
↓ 200.3%
25.2M
10:32/mi
4:03:29
↑ 13↓ 160.2%
Finish· 26.22 mi
9:26/mi
4:13:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:01
Pace9:09 /mi
2nd Half
Distance13.11 mi
Time2:13:05
Pace10:09 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:4826:428:3626:42
8:36
-
10K
6.21 mi11:23:4253:368:3826:54
8:39
+0:03
15K
9.32 mi11:52:301:22:248:5028:48
9:16
+0:37
20K
12.43 mi12:23:531:53:479:0931:23
10:06
+0:50
Half
13.11 mi12:30:072:00:019:096:14
9:08
-0:58
25K
15.53 mi12:53:302:23:249:1423:23
9:39
+0:31
30K
18.64 mi13:25:162:55:109:2431:46
10:13
+0:34
20M
20.00 mi13:39:243:09:189:2814:08
10:24
+0:11
21M
21.00 mi13:50:573:20:519:3411:33
11:33
+1:09
35K
21.75 mi13:58:493:28:439:367:52
10:31
-1:02
23M
23.00 mi14:11:363:41:309:3812:47
10:13
-0:18
24M
24.00 mi14:21:223:51:169:389:46
9:46
-0:27
40K
24.85 mi14:29:573:59:519:398:35
10:02
+0:16
25.2M
25.20 mi14:33:354:03:299:403:38
10:32
+0:30
Finish
26.22 mi14:43:124:13:069:409:37
9:26
-1:06

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

8:36 /mi

Average Pace

9:40 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:38

48% of race

Time at Steady Pace

1:48:25

43% of race

Time at Slower Pace

23:03

9% of race

Average Pace: 9:39 /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 mi10:56:4826:428:3626:42
8:36
#18207
10K
6.21 mi11:23:4253:368:3826:54
8:39
#18674
15K
9.32 mi11:52:301:22:248:5028:48
9:16
#19817
20K
12.43 mi12:23:531:53:479:0931:23
10:06
#21019
Half
13.11 mi12:30:072:00:019:096:14
9:08
#21020
25K
15.53 mi12:53:302:23:249:1423:23
9:39
#21060
30K
18.64 mi13:25:162:55:109:2431:46
10:13
#21175
20M
20.00 mi13:39:243:09:189:2814:08
10:24
#21176
21M
21.00 mi13:50:573:20:519:3411:33
11:33
#21233
35K
21.75 mi13:58:493:28:439:367:52
10:31
#21290
23M
23.00 mi14:11:363:41:309:3812:47
10:13
#21227
24M
24.00 mi14:21:223:51:169:389:46
9:46
#21168
40K
24.85 mi14:29:573:59:519:398:35
10:02
#21118
25.2M
25.20 mi14:33:354:03:299:403:38
10:32
#21083
Finish
26.22 mi14:43:124:13:069:409:37
9:26
#21039
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi182076689668921551(Top 81%)8530(Top 75%)8530(Top 1619%)
10K6.21 mi3.10 mi18674-4676928-2396928-23919196(Top 72%)7201(Top 63%)7201(Top 1366%)
15K9.32 mi3.11 mi19817-11437631-7037631-70321551(Top 81%)8530(Top 75%)8530(Top 1619%)
20K12.43 mi3.11 mi21019-12028288-6578288-65723114(Top 87%)9408(Top 82%)9408(Top 1785%)
Half13.11 mi0.68 mi21020-18280+88280+820989(Top 79%)8245(Top 72%)8245(Top 1565%)
25K15.53 mi2.42 mi21060-408298-188298-1821281(Top 80%)8429(Top 74%)8429(Top 1599%)
30K18.64 mi3.11 mi21175-1158379-818379-8121582(Top 81%)8668(Top 76%)8668(Top 1645%)
20M20.00 mi1.36 mi21176-18402-238402-2321525(Top 81%)8711(Top 76%)8711(Top 1653%)
21M21.00 mi1.00 mi21233-578442-408442-4021967(Top 83%)8970(Top 79%)8970(Top 1702%)
35K21.75 mi0.75 mi21290-578477-358477-3522427(Top 84%)9281(Top 81%)9281(Top 1761%)
23M23.00 mi1.25 mi21227+638461+168461+1620616(Top 77%)8301(Top 73%)8301(Top 1575%)
24M24.00 mi1.00 mi21168+598439+228439+2220131(Top 76%)8049(Top 70%)8049(Top 1527%)
40K24.85 mi0.85 mi21118+508416+238416+2320091(Top 75%)8109(Top 71%)8109(Top 1539%)
25.2M25.20 mi0.35 mi21083+358407+98407+919269(Top 72%)7664(Top 67%)7664(Top 1454%)
Finish26.22 mi1.02 mi21039+448391+168391+1619922(Top 75%)7955(Top 70%)7955(Top 1509%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21551

Females

8530

F60-64

8530

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19196

Females

7201

F60-64

7201

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21551

Females

8530

F60-64

8530

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23114

Females

9408

F60-64

9408

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

20989

Females

8245

F60-64

8245

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21281

Females

8429

F60-64

8429

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21582

Females

8668

F60-64

8668

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21525

Females

8711

F60-64

8711

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

21967

Females

8970

F60-64

8970

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22427

Females

9281

F60-64

9281

35K→23M

21.8 - 23.0 mi

Top 77%
×5story building
+23ft-63ft

Overall

20616

Females

8301

F60-64

8301

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

20131

Females

8049

F60-64

8049

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20091

Females

8109

F60-64

8109

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19269

Females

7664

F60-64

7664

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

19922

Females

7955

F60-64

7955

Passing Analysis

Category:
Athletes Passed
854
Passed By
3686
Net Change
-2832
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18207
5K → 10K143610-467#18207#18674
10K → 15K151158-1143#18674#19817
15K → 20K171219-1202#19817#21019
20K → Half2829-1#21019#21020
Half → 25K81121-40#21020#21060
25K → 30K103218-115#21060#21175
30K → 20M6869-1#21175#21176
20M → 21M43100-57#21176#21233
21M → 35K1774-57#21233#21290
35K → 23M9229+63#21290#21227
23M → 24M7314+59#21227#21168
24M → 40K7121+50#21168#21118
40K → 25.2M394+35#21118#21083
25.2M → Finish6420+44#21083#21039
TOTALS8543686-2832
📊

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