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BOSTON MARATHON 2023

Karely Velasco Elizalde

Bib: 13218•F

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
7:36/mi
23:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:25/mi
1:10:04
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:32:58
↑ 106↓ 860.1%
Half· 13.11 mi
7:23/mi
1:38:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:55:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:19:45
↑ 181↓ 1480.2%
20M
7:33/mi
2:30:01
↑ 64↓ 500.2%
21M
7:36/mi
2:37:37
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:43:11
↑ 17↓ 861.7%
23M
7:33/mi
2:52:38
↑ 23↓ 630.6%
24M
7:21/mi
2:59:59
↓ 821.3%
40K· 24.85 mi
7:27/mi
3:06:21
↓ 200.3%
25.2M
7:50/mi
3:09:03
↑ 13↓ 160.2%
Finish· 26.22 mi
7:04/mi
3:16:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:00
Pace7:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:15
Pace7:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:4623:377:3623:37
7:36
-
10K
6.21 mi11:23:1247:037:3423:26
7:33
-0:03
15K
9.32 mi11:46:131:10:047:3123:01
7:25
-0:08
20K
12.43 mi12:09:071:32:587:2922:54
7:22
-0:03
Half
13.11 mi12:14:091:38:007:295:02
7:23
+0:01
25K
15.53 mi12:32:071:55:587:2817:58
7:25
+0:02
30K
18.64 mi12:55:542:19:457:3023:47
7:39
+0:14
20M
20.00 mi13:06:102:30:017:3010:16
7:33
-0:06
21M
21.00 mi13:13:462:37:377:307:36
7:36
+0:03
35K
21.75 mi13:19:202:43:117:305:34
7:26
-0:10
23M
23.00 mi13:28:472:52:387:309:27
7:33
+0:07
24M
24.00 mi13:36:082:59:597:307:21
7:21
-0:12
40K
24.85 mi13:42:303:06:217:306:22
7:27
+0:06
25.2M
25.20 mi13:45:123:09:037:302:42
7:50
+0:23
Finish
26.22 mi13:52:243:16:157:297:12
7:04
-0:46

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

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:33

99% of race

Time at Steady Pace

2:42

1% 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 mi10:59:4623:377:3623:37
7:36
#10559
10K
6.21 mi11:23:1247:037:3423:26
7:33
#10659
15K
9.32 mi11:46:131:10:047:3123:01
7:25
#10219
20K
12.43 mi12:09:071:32:587:2922:54
7:22
#9659
Half
13.11 mi12:14:091:38:007:295:02
7:23
#9628
25K
15.53 mi12:32:071:55:587:2817:58
7:25
#9355
30K
18.64 mi12:55:542:19:457:3023:47
7:39
#9132
20M
20.00 mi13:06:102:30:017:3010:16
7:33
#8958
21M
21.00 mi13:13:462:37:377:307:36
7:36
#8698
35K
21.75 mi13:19:202:43:117:305:34
7:26
#8662
23M
23.00 mi13:28:472:52:387:309:27
7:33
#8519
24M
24.00 mi13:36:082:59:597:307:21
7:21
#8396
40K
24.85 mi13:42:303:06:217:306:22
7:27
#8291
25.2M
25.20 mi13:45:123:09:037:302:42
7:50
#8236
Finish
26.22 mi13:52:243:16:157:297:12
7:04
#8094
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10559211121119420(Top 35%)1587(Top 14%)1587(Top 32%)
10K6.21 mi3.10 mi10659-1002148-372148-3710821(Top 41%)2211(Top 19%)2211(Top 45%)
15K9.32 mi3.11 mi10219+4401919+2291919+2299420(Top 35%)1587(Top 14%)1587(Top 32%)
20K12.43 mi3.11 mi9659+5601686+2331686+2338313(Top 31%)1224(Top 11%)1224(Top 25%)
Half13.11 mi0.68 mi9628+311673+131673+139277(Top 35%)1569(Top 14%)1569(Top 32%)
25K15.53 mi2.42 mi9355+2731585+881585+888122(Top 31%)1228(Top 11%)1228(Top 25%)
30K18.64 mi3.11 mi9132+2231536+491536+498337(Top 31%)1440(Top 13%)1440(Top 29%)
20M20.00 mi1.36 mi8958+1741485+511485+517218(Top 27%)1110(Top 10%)1110(Top 23%)
21M21.00 mi1.00 mi8698+2601405+801405+805133(Top 19%)569(Top 5%)569(Top 12%)
35K21.75 mi0.75 mi8662+361407-21407-28125(Top 31%)1543(Top 14%)1543(Top 32%)
23M23.00 mi1.25 mi8519+1431379+281379+286751(Top 25%)1082(Top 9%)1082(Top 22%)
24M24.00 mi1.00 mi8396+1231353+261353+266753(Top 25%)1175(Top 10%)1175(Top 24%)
40K24.85 mi0.85 mi8291+1051335+181335+186402(Top 24%)1120(Top 10%)1120(Top 23%)
25.2M25.20 mi0.35 mi8236+551325+101325+105628(Top 21%)941(Top 8%)941(Top 19%)
Finish26.22 mi1.02 mi8094+1421290+351290+355646(Top 21%)959(Top 8%)959(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9420

Females

1587

F18-39

1587

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10821

Females

2211

F18-39

2211

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9420

Females

1587

F18-39

1587

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8313

Females

1224

F18-39

1224

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9277

Females

1569

F18-39

1569

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8122

Females

1228

F18-39

1228

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8337

Females

1440

F18-39

1440

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7218

Females

1110

F18-39

1110

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5133

Females

569

F18-39

569

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8125

Females

1543

F18-39

1543

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6751

Females

1082

F18-39

1082

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6753

Females

1175

F18-39

1175

24M→40K

24.0 - 24.9 mi

Top 24%
×1story
+6ft-20ft

Overall

6402

Females

1120

F18-39

1120

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5628

Females

941

F18-39

941

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

5646

Females

959

F18-39

959

Passing Analysis

Category:
Athletes Passed
3035*
Passed By
570
Net Change
+2465
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10559
5K → 10K239339-100#10559#10659
10K → 15K49050+440#10659#10219
15K → 20K567*7+560#10219#9659
20K → Half398+31#9659#9628
Half → 25K28512+273#9628#9355
25K → 30K282*59+223#9355#9132
30K → 20M18511+174#9132#8958
20M → 21M2644+260#8958#8698
21M → 35K6226+36#8698#8662
35K → 23M16219+143#8662#8519
23M → 24M13613+123#8519#8396
24M → 40K1116+105#8396#8291
40K → 25.2M594+55#8291#8236
25.2M → Finish15412+142#8236#8094
TOTALS3035*570+2465

* 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