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BOSTON MARATHON 2023

Courtney Shudak

Bib: 13213•F

NC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 21%
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
7:37/mi
23:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:56
↑ 79↓ 1380.4%
15K· 9.32 mi
7:29/mi
1:10:12
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:33:23
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:38:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:56:26
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:19:50
↑ 181↓ 1480.2%
20M
7:34/mi
2:30:07
↑ 64↓ 500.2%
21M
7:54/mi
2:38:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:04/mi
2:43:18
↑ 17↓ 861.7%
23M
7:28/mi
2:52:39
↑ 23↓ 630.6%
24M
7:17/mi
2:59:56
↓ 821.3%
40K· 24.85 mi
7:19/mi
3:06:11
↓ 200.3%
25.2M
7:44/mi
3:08:51
↑ 13↓ 160.2%
Finish· 26.22 mi
7:06/mi
3:16:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:37:39
Pace7:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0723:417:3723:41
7:37
-
10K
6.21 mi11:15:2246:567:3323:15
7:29
-0:08
15K
9.32 mi11:38:381:10:127:3223:16
7:29
0:00
20K
12.43 mi12:01:491:33:237:3123:11
7:28
-0:01
Half
13.11 mi12:06:521:38:267:315:03
7:24
-0:04
25K
15.53 mi12:24:521:56:267:3018:00
7:25
+0:01
30K
18.64 mi12:48:162:19:507:3023:24
7:32
+0:07
20M
20.00 mi12:58:332:30:077:3010:17
7:34
+0:02
21M
21.00 mi13:06:272:38:017:317:54
7:54
+0:20
35K
21.75 mi13:11:442:43:187:315:17
7:04
-0:50
23M
23.00 mi13:21:052:52:397:309:21
7:28
+0:24
24M
24.00 mi13:28:222:59:567:307:17
7:17
-0:11
40K
24.85 mi13:34:373:06:117:296:15
7:19
+0:02
25.2M
25.20 mi13:37:173:08:517:302:40
7:44
+0:25
Finish
26.22 mi13:44:313:16:057:297:14
7:06
-0:38

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

7:04 /mi

Average Pace

7:29 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:11

96% of race

Time at Steady Pace

7:54

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:29 /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 mi10:52:0723:417:3723:41
7:37
#10745
10K
6.21 mi11:15:2246:567:3323:15
7:29
#10503
15K
9.32 mi11:38:381:10:127:3223:16
7:29
#10340
20K
12.43 mi12:01:491:33:237:3123:11
7:28
#9961
Half
13.11 mi12:06:521:38:267:315:03
7:24
#9923
25K
15.53 mi12:24:521:56:267:3018:00
7:25
#9603
30K
18.64 mi12:48:162:19:507:3023:24
7:32
#9172
20M
20.00 mi12:58:332:30:077:3010:17
7:34
#8997
21M
21.00 mi13:06:272:38:017:317:54
7:54
#8846
35K
21.75 mi13:11:442:43:187:315:17
7:04
#8700
23M
23.00 mi13:21:052:52:397:309:21
7:28
#8524
24M
24.00 mi13:28:222:59:567:307:17
7:17
#8383
40K
24.85 mi13:34:373:06:117:296:15
7:19
#8248
25.2M
25.20 mi13:37:173:08:517:302:40
7:44
#8175
Finish
26.22 mi13:44:313:16:057:297:14
7:06
#8047
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi107452193219310093(Top 38%)1880(Top 16%)1880(Top 38%)
10K6.21 mi3.10 mi10503+2422071+1222071+12210324(Top 39%)1967(Top 17%)1967(Top 40%)
15K9.32 mi3.11 mi10340+1631975+961975+9610093(Top 38%)1880(Top 16%)1880(Top 38%)
20K12.43 mi3.11 mi9961+3791818+1571818+1579016(Top 34%)1490(Top 13%)1490(Top 31%)
Half13.11 mi0.68 mi9923+381805+131805+139460(Top 36%)1640(Top 14%)1640(Top 34%)
25K15.53 mi2.42 mi9603+3201688+1171688+1178214(Top 31%)1258(Top 11%)1258(Top 26%)
30K18.64 mi3.11 mi9172+4311553+1351553+1357452(Top 28%)1090(Top 10%)1090(Top 22%)
20M20.00 mi1.36 mi8997+1751500+531500+537301(Top 27%)1139(Top 10%)1139(Top 23%)
21M21.00 mi1.00 mi8846+1511459+411459+416762(Top 25%)1043(Top 9%)1043(Top 21%)
35K21.75 mi0.75 mi8700+1461423+361423+365754(Top 22%)700(Top 6%)700(Top 14%)
23M23.00 mi1.25 mi8524+1761382+411382+416268(Top 24%)910(Top 8%)910(Top 19%)
24M24.00 mi1.00 mi8383+1411345+371345+376301(Top 24%)1020(Top 9%)1020(Top 21%)
40K24.85 mi0.85 mi8248+1351317+281317+285559(Top 21%)835(Top 7%)835(Top 17%)
25.2M25.20 mi0.35 mi8175+731299+181299+185141(Top 19%)786(Top 7%)786(Top 16%)
Finish26.22 mi1.02 mi8047+1281274+251274+255843(Top 22%)1019(Top 9%)1019(Top 21%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10093

Females

1880

F18-39

1880

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10324

Females

1967

F18-39

1967

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10093

Females

1880

F18-39

1880

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9016

Females

1490

F18-39

1490

20K→Half

12.4 - 13.1 mi

Top 36%
×2story building
+19ft-37ft

Overall

9460

Females

1640

F18-39

1640

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8214

Females

1258

F18-39

1258

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7452

Females

1090

F18-39

1090

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7301

Females

1139

F18-39

1139

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6762

Females

1043

F18-39

1043

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

5754

Females

700

F18-39

700

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6268

Females

910

F18-39

910

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6301

Females

1020

F18-39

1020

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5559

Females

835

F18-39

835

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5141

Females

786

F18-39

786

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5843

Females

1019

F18-39

1019

Passing Analysis

Category:
Athletes Passed
3116*
Passed By
418
Net Change
+2698
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10745
5K → 10K421*179+242#10745#10503
10K → 15K286123+163#10503#10340
15K → 20K408*29+379#10340#9961
20K → Half435+38#9961#9923
Half → 25K3255+320#9923#9603
25K → 30K447*16+431#9603#9172
30K → 20M18611+175#9172#8997
20M → 21M1609+151#8997#8846
21M → 35K1471+146#8846#8700
35K → 23M18610+176#8700#8524
23M → 24M1509+141#8524#8383
24M → 40K1416+135#8383#8248
40K → 25.2M730+73#8248#8175
25.2M → Finish14315+128#8175#8047
TOTALS3116*418+2698

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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