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BOSTON MARATHON 2023

Nico Iannacone

Bib: 25424•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
10:46/mi
33:28
↑ 97↓ 3451.5%
10K· 6.21 mi
10:54/mi
1:07:20
↑ 79↓ 1380.4%
15K· 9.32 mi
11:07/mi
1:41:53
↑ 67↓ 78
20K· 12.43 mi
12:30/mi
2:20:42
↑ 106↓ 860.1%
Half· 13.11 mi
11:36/mi
2:28:37
↑ 19↓ 370.5%
25K· 15.53 mi
13:06/mi
3:00:23
↑ 66↓ 880.2%
30K· 18.64 mi
14:02/mi
3:43:59
↑ 181↓ 1480.2%
20M
14:20/mi
4:03:28
↑ 64↓ 500.2%
21M
14:03/mi
4:17:31
↑ 106↓ 241.6%
35K· 21.75 mi
13:29/mi
4:27:36
↑ 17↓ 861.7%
23M
17:23/mi
4:49:22
↑ 23↓ 630.6%
24M
13:46/mi
5:03:08
↓ 821.3%
40K· 24.85 mi
15:02/mi
5:15:59
↓ 200.3%
25.2M
14:18/mi
5:20:55
↑ 13↓ 160.2%
Finish· 26.22 mi
12:11/mi
5:33:20
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:37
Pace11:20 /mi
2nd Half
Distance13.11 mi
Time3:04:43
Pace14:05 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1433:2810:4633:28
10:46
-
10K
6.21 mi12:24:061:07:2010:5033:52
10:54
+0:08
15K
9.32 mi12:58:391:41:5310:5634:33
11:07
+0:13
20K
12.43 mi13:37:282:20:4211:1938:49
12:30
+1:23
Half
13.11 mi13:45:232:28:3711:207:55
11:36
-0:54
25K
15.53 mi14:17:093:00:2311:3731:46
13:06
+1:30
30K
18.64 mi15:00:453:43:5912:0143:36
14:02
+0:56
20M
20.00 mi15:20:144:03:2812:1019:29
14:20
+0:18
21M
21.00 mi15:34:174:17:3112:1614:03
14:03
-0:17
35K
21.75 mi15:44:224:27:3612:1810:05
13:29
-0:34
23M
23.00 mi16:06:084:49:2212:3521:46
17:23
+3:54
24M
24.00 mi16:19:545:03:0812:3813:46
13:46
-3:37
40K
24.85 mi16:32:455:15:5912:4312:51
15:02
+1:16
25.2M
25.20 mi16:37:415:20:5512:444:56
14:18
-0:44
Finish
26.22 mi16:50:065:33:2012:4312:25
12:11
-2:07

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

10:46 /mi

Average Pace

12:43 /mi

Slowest Pace

17:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:02

48% of race

Time at Steady Pace

2:17:41

41% of race

Time at Slower Pace

34:37

10% of race

Average Pace: 12:43 /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 mi11:50:1433:2810:4633:28
10:46
#25315
10K
6.21 mi12:24:061:07:2010:5033:52
10:54
#25333
15K
9.32 mi12:58:391:41:5310:5634:33
11:07
#25354
20K
12.43 mi13:37:282:20:4211:1938:49
12:30
#25608
Half
13.11 mi13:45:232:28:3711:207:55
11:36
#25609
25K
15.53 mi14:17:093:00:2311:3731:46
13:06
#25711
30K
18.64 mi15:00:453:43:5912:0143:36
14:02
#25798
20M
20.00 mi15:20:144:03:2812:1019:29
14:20
#25836
21M
21.00 mi15:34:174:17:3112:1614:03
14:03
#25809
35K
21.75 mi15:44:224:27:3612:1810:05
13:29
#25815
23M
23.00 mi16:06:084:49:2212:3521:46
17:23
#25957
24M
24.00 mi16:19:545:03:0812:3813:46
13:46
#25967
40K
24.85 mi16:32:455:15:5912:4312:51
15:02
#25997
25.2M
25.20 mi16:37:415:20:5512:444:56
14:18
#25987
Finish
26.22 mi16:50:065:33:2012:4312:25
12:11
#25981
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25315146761467625334(Top 95%)14666(Top 97%)14666(Top 278%)
10K6.21 mi3.10 mi25333-1814689-1314689-1325341(Top 95%)14687(Top 97%)14687(Top 278%)
15K9.32 mi3.11 mi25354-2114687+214687+225334(Top 95%)14666(Top 97%)14666(Top 278%)
20K12.43 mi3.11 mi25608-25414772-8514772-8525961(Top 98%)14907(Top 98%)14907(Top 282%)
Half13.11 mi0.68 mi25609-1147721477225565(Top 96%)14719(Top 97%)14719(Top 279%)
25K15.53 mi2.42 mi25711-10214809-3714809-3725925(Top 97%)14865(Top 98%)14865(Top 281%)
30K18.64 mi3.11 mi25798-8714838-2914838-2926046(Top 98%)14899(Top 98%)14899(Top 282%)
20M20.00 mi1.36 mi25836-3814845-714845-726016(Top 98%)14861(Top 98%)14861(Top 281%)
21M21.00 mi1.00 mi25809+2714840+514840+525075(Top 94%)14404(Top 95%)14404(Top 273%)
35K21.75 mi0.75 mi25815-614836+414836+425874(Top 97%)14777(Top 97%)14777(Top 280%)
23M23.00 mi1.25 mi25957-14214895-5914895-5926569(Top 100%)15144(Top 100%)15144(Top 287%)
24M24.00 mi1.00 mi25967-1014900-514900-525952(Top 97%)14788(Top 97%)14788(Top 280%)
40K24.85 mi0.85 mi25997-3014908-814908-826159(Top 98%)14889(Top 98%)14889(Top 282%)
25.2M25.20 mi0.35 mi25987+1014903+514903+525239(Top 95%)14415(Top 95%)14415(Top 273%)
Finish26.22 mi1.02 mi25981+614898+514898+525409(Top 95%)14513(Top 96%)14513(Top 275%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

25334

Males

14666

M18-39

14666

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

25341

Males

14687

M18-39

14687

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

25334

Males

14666

M18-39

14666

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

25961

Males

14907

M18-39

14907

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

25565

Males

14719

M18-39

14719

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25925

Males

14865

M18-39

14865

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

26046

Males

14899

M18-39

14899

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

26016

Males

14861

M18-39

14861

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

25075

Males

14404

M18-39

14404

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

25874

Males

14777

M18-39

14777

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

26569

Males

15144

M18-39

15144

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

25952

Males

14788

M18-39

14788

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26159

Males

14889

M18-39

14889

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25239

Males

14415

M18-39

14415

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2story building
+22ft-21ft

Overall

25409

Males

14513

M18-39

14513

Passing Analysis

Category:
Athletes Passed
437
Passed By
1103
Net Change
-666
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25315
5K → 10K150168-18#25315#25333
10K → 15K95116-21#25333#25354
15K → 20K28282-254#25354#25608
20K → Half1314-1#25608#25609
Half → 25K23125-102#25609#25711
25K → 30K33120-87#25711#25798
30K → 20M1452-38#25798#25836
20M → 21M369+27#25836#25809
21M → 35K1016-6#25809#25815
35K → 23M0142-142#25815#25957
23M → 24M818-10#25957#25967
24M → 40K535-30#25967#25997
40K → 25.2M111+10#25997#25987
25.2M → Finish115+6#25987#25981
TOTALS4371103-666
📊

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