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BOSTON MARATHON 2023

Federico Alzamora Previtali

Bib: 5972•M

QC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 50%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #2326
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
40:28
Rank: #2603 (-277)
5K → 10K
20:15 | 6:31/mi
15K· 9.32 mi
1:01:35
Rank: #3253 (-650)
10K → 15K
21:07 | 6:48/mi
20K· 12.43 mi
1:23:18
Rank: #3902 (-649)
15K → 20K
21:43 | 6:59/mi
Half· 13.11 mi
1:28:03
Rank: #4041 (-139)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:45:34
Rank: #4660 (-619)
Half → 25K
17:31 | 7:13/mi
30K· 18.64 mi
2:09:29
Rank: #5508 (-848)
25K → 30K
23:55 | 7:42/mi
20M
2:20:35
Rank: #5827 (-319)
30K → 20M
11:06 | 8:10/mi
21M
2:29:25
Rank: #6097 (-270)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
2:37:32
Rank: #6808 (-711)
21M → 35K
8:07 | 10:51/mi
23M
2:50:28
Rank: #7774 (-966)
35K → 23M
12:56 | 10:20/mi
24M
2:59:41
Rank: #8310 (-536)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:08:02
Rank: #8822 (-512)
24M → 40K
8:21 | 9:46/mi
25.2M
3:12:08
Rank: #9152 (-330)
40K → 25.2M
4:06 | 11:53/mi
Finish· 26.22 mi
3:20:45
Rank: #9386 (-234)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:03
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:52:42
Pace8:36 /mi
📊Positive Split: 28.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0220:136:3020:13
6:30
-
10K
6.21 mi11:06:1740:286:3120:15
6:31
+0:01
15K
9.32 mi11:27:241:01:356:3621:07
6:48
+0:17
20K
12.43 mi11:49:071:23:186:4221:43
6:59
+0:11
Half
13.11 mi11:53:521:28:036:434:45
6:58
-0:01
25K
15.53 mi12:11:231:45:346:4817:31
7:13
+0:15
30K
18.64 mi12:35:182:09:296:5723:55
7:42
+0:29
20M
20.00 mi12:46:242:20:357:0211:06
8:10
+0:28
21M
21.00 mi12:55:142:29:257:078:50
8:50
+0:40
35K
21.75 mi13:03:212:37:327:158:07
10:51
+2:01
23M
23.00 mi13:16:172:50:287:2512:56
10:20
-0:31
24M
24.00 mi13:25:302:59:417:299:13
9:13
-1:07
40K
24.85 mi13:33:513:08:027:348:21
9:46
+0:33
25.2M
25.20 mi13:37:573:12:087:374:06
11:53
+2:07
Finish
26.22 mi13:46:343:20:457:408:37
8:27
-3:26

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

6:30 /mi

Average Pace

7:40 /mi

Slowest Pace

11:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:34

53% of race

Time at Steady Pace

52:28

26% of race

Time at Slower Pace

42:43

21% of race

Average Pace: 7:39 /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 mi10:46:0220:136:3020:13
6:30
#2326
10K
6.21 mi11:06:1740:286:3120:15
6:31
#2603
15K
9.32 mi11:27:241:01:356:3621:07
6:48
#3253
20K
12.43 mi11:49:071:23:186:4221:43
6:59
#3902
Half
13.11 mi11:53:521:28:036:434:45
6:58
#4041
25K
15.53 mi12:11:231:45:346:4817:31
7:13
#4660
30K
18.64 mi12:35:182:09:296:5723:55
7:42
#5508
20M
20.00 mi12:46:242:20:357:0211:06
8:10
#5827
21M
21.00 mi12:55:142:29:257:078:50
8:50
#6097
35K
21.75 mi13:03:212:37:327:158:07
10:51
#6808
23M
23.00 mi13:16:172:50:287:2512:56
10:20
#7774
24M
24.00 mi13:25:302:59:417:299:13
9:13
#8310
40K
24.85 mi13:33:513:08:027:348:21
9:46
#8822
25.2M
25.20 mi13:37:573:12:087:374:06
11:53
#9152
Finish
26.22 mi13:46:343:20:457:408:37
8:27
#9386
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2326221822185100(Top 19%)4727(Top 31%)4727(Top 89%)
10K6.21 mi3.10 mi2603-2772483-2652483-2652919(Top 11%)2789(Top 18%)2789(Top 53%)
15K9.32 mi3.11 mi3253-6503092-6093092-6095100(Top 19%)4727(Top 31%)4727(Top 89%)
20K12.43 mi3.11 mi3902-6493675-5833675-5835929(Top 22%)5420(Top 36%)5420(Top 103%)
Half13.11 mi0.68 mi4041-1393796-1213796-1216365(Top 24%)5775(Top 38%)5775(Top 109%)
25K15.53 mi2.42 mi4660-6194340-5444340-5446825(Top 26%)6030(Top 40%)6030(Top 114%)
30K18.64 mi3.11 mi5508-8485072-7325072-7328628(Top 32%)7056(Top 46%)7056(Top 134%)
20M20.00 mi1.36 mi5827-3195322-2505322-25011440(Top 43%)8452(Top 56%)8452(Top 160%)
21M21.00 mi1.00 mi6097-2705512-1905512-19012422(Top 47%)8759(Top 58%)8759(Top 166%)
35K21.75 mi0.75 mi6808-7116046-5346046-53423001(Top 86%)13382(Top 88%)13382(Top 253%)
23M23.00 mi1.25 mi7774-9666668-6226668-62220879(Top 78%)12401(Top 82%)12401(Top 235%)
24M24.00 mi1.00 mi8310-5366982-3146982-31418092(Top 68%)11115(Top 73%)11115(Top 210%)
40K24.85 mi0.85 mi8822-5127262-2807262-28019234(Top 72%)11580(Top 76%)11580(Top 219%)
25.2M25.20 mi0.35 mi9152-3307451-1897451-18922262(Top 84%)12962(Top 85%)12962(Top 245%)
Finish26.22 mi1.02 mi9386-2347561-1107561-11015084(Top 57%)9758(Top 64%)9758(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5100

Males

4727

M18-39

4727

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

2919

Males

2789

M18-39

2789

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5100

Males

4727

M18-39

4727

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5929

Males

5420

M18-39

5420

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6365

Males

5775

M18-39

5775

Half→25K

13.1 - 15.5 mi

Top 26%
×4stories
+66ft-88ft

Overall

6825

Males

6030

M18-39

6030

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8628

Males

7056

M18-39

7056

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

11440

Males

8452

M18-39

8452

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12422

Males

8759

M18-39

8759

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

23001

Males

13382

M18-39

13382

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

20879

Males

12401

M18-39

12401

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

18092

Males

11115

M18-39

11115

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19234

Males

11580

M18-39

11580

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22262

Males

12962

M18-39

12962

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15084

Males

9758

M18-39

9758

Passing Analysis

Category:
Athletes Passed
145
Passed By
7205
Net Change
-7060
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2326
5K → 10K47324-277#2326#2603
10K → 15K3653-650#2603#3253
15K → 20K10659-649#3253#3902
20K → Half3142-139#3902#4041
Half → 25K11630-619#4041#4660
25K → 30K17865-848#4660#5508
30K → 20M10329-319#5508#5827
20M → 21M10280-270#5827#6097
21M → 35K0711-711#6097#6808
35K → 23M5971-966#6808#7774
23M → 24M13549-536#7774#8310
24M → 40K5517-512#8310#8822
40K → 25.2M2332-330#8822#9152
25.2M → Finish9243-234#9152#9386
TOTALS1457205-7060
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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