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BOSTON MARATHON 2023

Shannon Keith

Bib: 19298•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 48%
Division (F40-44)
#0 / 1878
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
8:22/mi
26:01
↑ 97↓ 3451.5%
10K· 6.21 mi
8:14/mi
51:36
↑ 79↓ 1380.4%
15K· 9.32 mi
8:16/mi
1:17:17
↑ 67↓ 78
20K· 12.43 mi
8:48/mi
1:44:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:15/mi
1:50:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:11:15
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:39:48
↑ 181↓ 1480.2%
20M
9:19/mi
2:52:27
↑ 64↓ 500.2%
21M
10:01/mi
3:02:28
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:09:29
↑ 17↓ 861.7%
23M
9:29/mi
3:21:22
↑ 23↓ 630.6%
24M
9:13/mi
3:30:35
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:38:31
↓ 200.3%
25.2M
9:52/mi
3:41:55
↑ 13↓ 160.2%
Finish· 26.22 mi
8:46/mi
3:50:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:16
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time2:00:35
Pace9:12 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3926:018:2226:01
8:22
-
10K
6.21 mi11:43:1451:368:1825:35
8:14
-0:08
15K
9.32 mi12:08:551:17:178:1825:41
8:16
+0:02
20K
12.43 mi12:36:161:44:388:2527:21
8:48
+0:32
Half
13.11 mi12:41:541:50:168:255:38
8:15
-0:33
25K
15.53 mi13:02:532:11:158:2720:59
8:39
+0:24
30K
18.64 mi13:31:262:39:488:3428:33
9:11
+0:32
20M
20.00 mi13:44:052:52:278:3712:39
9:19
+0:08
21M
21.00 mi13:54:063:02:288:4110:01
10:01
+0:42
35K
21.75 mi14:01:073:09:298:437:01
9:23
-0:38
23M
23.00 mi14:13:003:21:228:4511:53
9:29
+0:06
24M
24.00 mi14:22:133:30:358:469:13
9:13
-0:16
40K
24.85 mi14:30:093:38:318:487:56
9:17
+0:04
25.2M
25.20 mi14:33:333:41:558:483:24
9:52
+0:35
Finish
26.22 mi14:42:293:50:518:498:56
8:46
-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

8:14 /mi

Average Pace

8:49 /mi

Slowest Pace

10:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:11

61% of race

Time at Steady Pace

1:05:22

28% of race

Time at Slower Pace

25:18

11% of race

Average Pace: 8:48 /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 mi11:17:3926:018:2226:01
8:22
#16701
10K
6.21 mi11:43:1451:368:1825:35
8:14
#16539
15K
9.32 mi12:08:551:17:178:1825:41
8:16
#16463
20K
12.43 mi12:36:161:44:388:2527:21
8:48
#17068
Half
13.11 mi12:41:541:50:168:255:38
8:15
#17029
25K
15.53 mi13:02:532:11:158:2720:59
8:39
#17039
30K
18.64 mi13:31:262:39:488:3428:33
9:11
#17201
20M
20.00 mi13:44:052:52:278:3712:39
9:19
#17265
21M
21.00 mi13:54:063:02:288:4110:01
10:01
#17312
35K
21.75 mi14:01:073:09:298:437:01
9:23
#17423
23M
23.00 mi14:13:003:21:228:4511:53
9:29
#17491
24M
24.00 mi14:22:133:30:358:469:13
9:13
#17547
40K
24.85 mi14:30:093:38:318:487:56
9:17
#17571
25.2M
25.20 mi14:33:333:41:558:483:24
9:52
#17551
Finish
26.22 mi14:42:293:50:518:498:56
8:46
#17536
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi167015733573316340(Top 61%)5504(Top 48%)5504(Top 293%)
10K6.21 mi3.10 mi16539+1625604+1295604+12916507(Top 62%)5582(Top 49%)5582(Top 297%)
15K9.32 mi3.11 mi16463+765568+365568+3616340(Top 61%)5504(Top 48%)5504(Top 293%)
20K12.43 mi3.11 mi17068-6055973-4055973-40518705(Top 70%)6910(Top 60%)6910(Top 368%)
Half13.11 mi0.68 mi17029+395947+265947+2616285(Top 61%)5486(Top 48%)5486(Top 292%)
25K15.53 mi2.42 mi17039-105970-235970-2317146(Top 64%)6089(Top 53%)6089(Top 324%)
30K18.64 mi3.11 mi17201-1626078-1086078-10818117(Top 68%)6715(Top 59%)6715(Top 358%)
20M20.00 mi1.36 mi17265-646139-616139-6118066(Top 68%)6772(Top 59%)6772(Top 361%)
21M21.00 mi1.00 mi17312-476183-446183-4418107(Top 68%)6819(Top 60%)6819(Top 363%)
35K21.75 mi0.75 mi17423-1116260-776260-7719451(Top 73%)7624(Top 67%)7624(Top 406%)
23M23.00 mi1.25 mi17491-686317-576317-5718311(Top 69%)7017(Top 61%)7017(Top 374%)
24M24.00 mi1.00 mi17547-566363-466363-4618129(Top 68%)6965(Top 61%)6965(Top 371%)
40K24.85 mi0.85 mi17571-246386-236386-2317441(Top 66%)6650(Top 58%)6650(Top 354%)
25.2M25.20 mi0.35 mi17551+206379+76379+716859(Top 63%)6350(Top 56%)6350(Top 338%)
Finish26.22 mi1.02 mi17536+156381-26381-216871(Top 63%)6303(Top 55%)6303(Top 336%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

16340

Females

5504

F40-44

5504

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16507

Females

5582

F40-44

5582

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

16340

Females

5504

F40-44

5504

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

18705

Females

6910

F40-44

6910

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

16285

Females

5486

F40-44

5486

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

17146

Females

6089

F40-44

6089

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18117

Females

6715

F40-44

6715

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18066

Females

6772

F40-44

6772

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18107

Females

6819

F40-44

6819

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19451

Females

7624

F40-44

7624

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18311

Females

7017

F40-44

7017

23M→24M

23.0 - 24.0 mi

Top 68%
×6story building
+12ft-82ft

Overall

18129

Females

6965

F40-44

6965

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17441

Females

6650

F40-44

6650

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16859

Females

6350

F40-44

6350

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16871

Females

6303

F40-44

6303

Passing Analysis

Category:
Athletes Passed
1398
Passed By
2233
Net Change
-835
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16701
5K → 10K393231+162#16701#16539
10K → 15K232156+76#16539#16463
15K → 20K54659-605#16463#17068
20K → Half4910+39#17068#17029
Half → 25K114124-10#17029#17039
25K → 30K127289-162#17039#17201
30K → 20M60124-64#17201#17265
20M → 21M70117-47#17265#17312
21M → 35K24135-111#17312#17423
35K → 23M72140-68#17423#17491
23M → 24M4197-56#17491#17547
24M → 40K5478-24#17547#17571
40K → 25.2M4121+20#17571#17551
25.2M → Finish6752+15#17551#17536
TOTALS13982233-835
📊

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