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BOSTON MARATHON 2023

Keli Alvarez

Bib: 18290•F

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Division (F18-39)
#0 / 4884
Top 36%
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
8:09/mi
25:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:51
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:13:54
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:38:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:43:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
2:02:16
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:26:37
↑ 181↓ 1480.2%
20M
7:49/mi
2:37:14
↑ 64↓ 500.2%
21M
8:03/mi
2:45:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:32/mi
2:50:55
↑ 17↓ 861.7%
23M
7:38/mi
3:00:29
↑ 23↓ 630.6%
24M
7:21/mi
3:07:50
↓ 821.3%
40K· 24.85 mi
7:33/mi
3:14:17
↓ 200.3%
25.2M
8:07/mi
3:17:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:26/mi
3:24:39
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:43:26
Pace7:53 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:41:13
Pace7:43 /mi
📊Negative Split: 2.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4525:198:0925:19
8:09
-
10K
6.21 mi11:41:1749:518:0124:32
7:54
-0:15
15K
9.32 mi12:05:201:13:547:5624:03
7:44
-0:10
20K
12.43 mi12:29:351:38:097:5424:15
7:48
+0:04
Half
13.11 mi12:34:521:43:267:535:17
7:45
-0:03
25K
15.53 mi12:53:422:02:167:5218:50
7:46
+0:01
30K
18.64 mi13:18:032:26:377:5224:21
7:50
+0:04
20M
20.00 mi13:28:402:37:147:5210:37
7:49
-0:01
21M
21.00 mi13:36:432:45:177:528:03
8:03
+0:14
35K
21.75 mi13:42:212:50:557:525:38
7:32
-0:31
23M
23.00 mi13:51:553:00:297:519:34
7:38
+0:06
24M
24.00 mi13:59:163:07:507:507:21
7:21
-0:17
40K
24.85 mi14:05:433:14:177:496:27
7:33
+0:12
25.2M
25.20 mi14:08:313:17:057:492:48
8:07
+0:34
Finish
26.22 mi14:16:053:24:397:497:34
7:26
-0:41

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

7:21 /mi

Average Pace

7:49 /mi

Slowest Pace

8:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:32

86% of race

Time at Steady Pace

28:07

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:16:4525:198:0925:19
8:09
#15062
10K
6.21 mi11:41:1749:518:0124:32
7:54
#14537
15K
9.32 mi12:05:201:13:547:5624:03
7:44
#13807
20K
12.43 mi12:29:351:38:097:5424:15
7:48
#13302
Half
13.11 mi12:34:521:43:267:535:17
7:45
#13231
25K
15.53 mi12:53:422:02:167:5218:50
7:46
#12795
30K
18.64 mi13:18:032:26:377:5224:21
7:50
#12168
20M
20.00 mi13:28:402:37:147:5210:37
7:49
#11875
21M
21.00 mi13:36:432:45:177:528:03
8:03
#11600
35K
21.75 mi13:42:212:50:557:525:38
7:32
#11474
23M
23.00 mi13:51:553:00:297:519:34
7:38
#11183
24M
24.00 mi13:59:163:07:507:507:21
7:21
#10946
40K
24.85 mi14:05:433:14:177:496:27
7:33
#10768
25.2M
25.20 mi14:08:313:17:057:492:48
8:07
#10699
Finish
26.22 mi14:16:053:24:397:497:34
7:26
#10549
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150624681468112212(Top 46%)3018(Top 26%)3018(Top 62%)
10K6.21 mi3.10 mi14537+5254363+3184363+31813958(Top 52%)4014(Top 35%)4014(Top 82%)
15K9.32 mi3.11 mi13807+7303947+4163947+41612212(Top 46%)3018(Top 26%)3018(Top 62%)
20K12.43 mi3.11 mi13302+5053660+2873660+28711791(Top 44%)2840(Top 25%)2840(Top 58%)
Half13.11 mi0.68 mi13231+713620+403620+4012251(Top 46%)3043(Top 27%)3043(Top 62%)
25K15.53 mi2.42 mi12795+4363392+2283392+22810865(Top 41%)2417(Top 21%)2417(Top 49%)
30K18.64 mi3.11 mi12168+6273072+3203072+3209661(Top 36%)2007(Top 18%)2007(Top 41%)
20M20.00 mi1.36 mi11875+2932925+1472925+1478994(Top 34%)1799(Top 16%)1799(Top 37%)
21M21.00 mi1.00 mi11600+2752790+1352790+1357722(Top 29%)1407(Top 12%)1407(Top 29%)
35K21.75 mi0.75 mi11474+1262734+562734+568810(Top 33%)1843(Top 16%)1843(Top 38%)
23M23.00 mi1.25 mi11183+2912596+1382596+1387407(Top 28%)1349(Top 12%)1349(Top 28%)
24M24.00 mi1.00 mi10946+2372496+1002496+1006779(Top 25%)1201(Top 11%)1201(Top 25%)
40K24.85 mi0.85 mi10768+1782433+632433+637031(Top 26%)1392(Top 12%)1392(Top 29%)
25.2M25.20 mi0.35 mi10699+692414+192414+197315(Top 27%)1559(Top 14%)1559(Top 32%)
Finish26.22 mi1.02 mi10549+1502373+412373+418003(Top 30%)1833(Top 16%)1833(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12212

Females

3018

F18-39

3018

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13958

Females

4014

F18-39

4014

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12212

Females

3018

F18-39

3018

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11791

Females

2840

F18-39

2840

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12251

Females

3043

F18-39

3043

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10865

Females

2417

F18-39

2417

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9661

Females

2007

F18-39

2007

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

8994

Females

1799

F18-39

1799

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7722

Females

1407

F18-39

1407

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8810

Females

1843

F18-39

1843

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7407

Females

1349

F18-39

1349

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6779

Females

1201

F18-39

1201

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7031

Females

1392

F18-39

1392

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7315

Females

1559

F18-39

1559

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8003

Females

1833

F18-39

1833

Passing Analysis

Category:
Athletes Passed
4722
Passed By
209
Net Change
+4513
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15062
5K → 10K636111+525#15062#14537
10K → 15K74919+730#14537#13807
15K → 20K52116+505#13807#13302
20K → Half787+71#13302#13231
Half → 25K4415+436#13231#12795
25K → 30K6314+627#12795#12168
30K → 20M3007+293#12168#11875
20M → 21M2761+275#11875#11600
21M → 35K1315+126#11600#11474
35K → 23M3009+291#11474#11183
23M → 24M2414+237#11183#10946
24M → 40K1857+178#10946#10768
40K → 25.2M756+69#10768#10699
25.2M → Finish1588+150#10699#10549
TOTALS4722209+4513
📊

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