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BOSTON MARATHON 2023

Shelby Moleskie

Bib: 19323•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 26%
Division (F40-44)
#0 / 1878
Top 46%
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
7:57/mi
24:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:57/mi
49:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:14:06
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:38:59
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:44:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:04:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:31:24
↑ 181↓ 1480.2%
20M
8:53/mi
2:43:28
↑ 64↓ 500.2%
21M
9:39/mi
2:53:07
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
2:59:28
↑ 17↓ 861.7%
23M
8:22/mi
3:09:57
↑ 23↓ 630.6%
24M
8:27/mi
3:18:24
↓ 821.3%
40K· 24.85 mi
8:27/mi
3:25:38
↓ 200.3%
25.2M
9:20/mi
3:28:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:37:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:25
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:52:49
Pace8:36 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1424:447:5724:44
7:57
-
10K
6.21 mi11:42:5749:277:5724:44
7:57
0:00
15K
9.32 mi12:07:361:14:067:5724:39
7:56
-0:01
20K
12.43 mi12:32:291:38:597:5824:53
8:01
+0:05
Half
13.11 mi12:37:551:44:257:585:26
7:58
-0:03
25K
15.53 mi12:57:412:04:118:0019:46
8:09
+0:11
30K
18.64 mi13:24:542:31:248:0727:13
8:46
+0:37
20M
20.00 mi13:36:582:43:288:1012:04
8:53
+0:07
21M
21.00 mi13:46:372:53:078:159:39
9:39
+0:46
35K
21.75 mi13:52:582:59:288:156:21
8:29
-1:10
23M
23.00 mi14:03:273:09:578:1610:29
8:22
-0:07
24M
24.00 mi14:11:543:18:248:168:27
8:27
+0:05
40K
24.85 mi14:19:083:25:388:167:14
8:27
0:00
25.2M
25.20 mi14:22:213:28:518:173:13
9:20
+0:53
Finish
26.22 mi14:30:443:37:148:178:23
8:14
-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

7:56 /mi

Average Pace

8:17 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:25

48% of race

Time at Steady Pace

1:00:40

28% of race

Time at Slower Pace

52:09

24% of race

Average Pace: 8:17 /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 mi11:18:1424:447:5724:44
7:57
#13712
10K
6.21 mi11:42:5749:277:5724:44
7:57
#14073
15K
9.32 mi12:07:361:14:067:5724:39
7:56
#13976
20K
12.43 mi12:32:291:38:597:5824:53
8:01
#13826
Half
13.11 mi12:37:551:44:257:585:26
7:58
#13831
25K
15.53 mi12:57:412:04:118:0019:46
8:09
#13829
30K
18.64 mi13:24:542:31:248:0727:13
8:46
#14269
20M
20.00 mi13:36:582:43:288:1012:04
8:53
#14361
21M
21.00 mi13:46:372:53:078:159:39
9:39
#14498
35K
21.75 mi13:52:582:59:288:156:21
8:29
#14536
23M
23.00 mi14:03:273:09:578:1610:29
8:22
#14397
24M
24.00 mi14:11:543:18:248:168:27
8:27
#14370
40K
24.85 mi14:19:083:25:388:167:14
8:27
#14295
25.2M
25.20 mi14:22:213:28:518:173:13
9:20
#14293
Finish
26.22 mi14:30:443:37:148:178:23
8:14
#14247
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi137123854385413878(Top 52%)4018(Top 35%)4018(Top 214%)
10K6.21 mi3.10 mi14073-3614085-2314085-23114476(Top 54%)4353(Top 38%)4353(Top 232%)
15K9.32 mi3.11 mi13976+974044+414044+4113878(Top 52%)4018(Top 35%)4018(Top 214%)
20K12.43 mi3.11 mi13826+1503976+683976+6813526(Top 51%)3834(Top 34%)3834(Top 204%)
Half13.11 mi0.68 mi13831-53983-73983-714145(Top 53%)4176(Top 37%)4176(Top 222%)
25K15.53 mi2.42 mi13829+24010-274010-2713910(Top 52%)4166(Top 36%)4166(Top 222%)
30K18.64 mi3.11 mi14269-4404311-3014311-30115830(Top 59%)5402(Top 47%)5402(Top 288%)
20M20.00 mi1.36 mi14361-924400-894400-8915895(Top 60%)5502(Top 48%)5502(Top 293%)
21M21.00 mi1.00 mi14498-1374493-934493-9316653(Top 63%)5985(Top 52%)5985(Top 319%)
35K21.75 mi0.75 mi14536-384523-304523-3015249(Top 57%)5253(Top 46%)5253(Top 280%)
23M23.00 mi1.25 mi14397+1394470+534470+5312439(Top 47%)3769(Top 33%)3769(Top 201%)
24M24.00 mi1.00 mi14370+274473-34473-314230(Top 53%)4816(Top 42%)4816(Top 256%)
40K24.85 mi0.85 mi14295+754452+214452+2113033(Top 49%)4235(Top 37%)4235(Top 226%)
25.2M25.20 mi0.35 mi14293+24462-104462-1014370(Top 54%)4940(Top 43%)4940(Top 263%)
Finish26.22 mi1.02 mi14247+464456+64456+613641(Top 51%)4547(Top 40%)4547(Top 242%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13878

Females

4018

F40-44

4018

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

14476

Females

4353

F40-44

4353

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13878

Females

4018

F40-44

4018

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

13526

Females

3834

F40-44

3834

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14145

Females

4176

F40-44

4176

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13910

Females

4166

F40-44

4166

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15830

Females

5402

F40-44

5402

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15895

Females

5502

F40-44

5502

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16653

Females

5985

F40-44

5985

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

15249

Females

5253

F40-44

5253

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

12439

Females

3769

F40-44

3769

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14230

Females

4816

F40-44

4816

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13033

Females

4235

F40-44

4235

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14370

Females

4940

F40-44

4940

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

13641

Females

4547

F40-44

4547

Passing Analysis

Category:
Athletes Passed
1463
Passed By
1998
Net Change
-535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13712
5K → 10K143504-361#13712#14073
10K → 15K238141+97#14073#13976
15K → 20K24494+150#13976#13826
20K → Half3237-5#13826#13831
Half → 25K133131+2#13831#13829
25K → 30K86526-440#13829#14269
30K → 20M60152-92#14269#14361
20M → 21M41178-137#14361#14498
21M → 35K3068-38#14498#14536
35K → 23M15617+139#14536#14397
23M → 24M8457+27#14397#14370
24M → 40K10126+75#14370#14295
40K → 25.2M3028+2#14295#14293
25.2M → Finish8539+46#14293#14247
TOTALS14631998-535
📊

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