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BOSTON MARATHON 2023

Denise Iannizzotto

Bib: 18237•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 38%
Gender (Female)
#0 / 11423
Top 19%
Masters (Masters Women)
#0 / 6539
Top 8%
Division (F60-64)
#0 / 527
Top 1%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:43
Rank: #10866
Start → 5K
7:38/mi
23:43 split
10K· 6.21 mi
47:02
Rank: #10644 (+222)
5K → 10K
7:30/mi
23:19 split
15K· 9.32 mi
1:10:33
Rank: #10658 (-14)
10K → 15K
7:34/mi
23:31 split
20K· 12.43 mi
1:34:26
Rank: #10700 (-42)
15K → 20K
7:41/mi
23:53 split
Half· 13.11 mi
1:39:35
Rank: #10695 (+5)
20K → Half
7:33/mi
5:09 split
25K· 15.53 mi
1:58:06
Rank: #10500 (+195)
Half → 25K
7:38/mi
18:31 split
30K· 18.64 mi
2:22:19
Rank: #10251 (+249)
25K → 30K
7:48/mi
24:13 split
20M
2:33:03
Rank: #10183 (+68)
30K → 20M
7:54/mi
10:44 split
21M
2:41:29
Rank: #10140 (+43)
20M → 21M
8:26/mi
8:26 split
35K· 21.75 mi
2:47:14
Rank: #10111 (+29)
21M → 35K
7:41/mi
5:45 split
23M
2:57:15
Rank: #10059 (+52)
35K → 23M
8:00/mi
10:01 split
24M
3:04:54
Rank: #9983 (+76)
23M → 24M
7:39/mi
7:39 split
40K· 24.85 mi
3:11:40
Rank: #9929 (+54)
24M → 40K
7:55/mi
6:46 split
25.2M
3:14:41
Rank: #9930 (-1)
40K → 25.2M
8:45/mi
3:01 split
Finish· 26.22 mi
3:23:12
Rank: #10108 (-178)
25.2M → Finish
8:21/mi
8:31 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:35
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:43:37
Pace7:54 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4923:437:3823:43
7:38
-
10K
6.21 mi11:37:0847:027:3423:19
7:30
-0:08
15K
9.32 mi12:00:391:10:337:3423:31
7:34
+0:04
20K
12.43 mi12:24:321:34:267:3623:53
7:41
+0:07
Half
13.11 mi12:29:411:39:357:365:09
7:33
-0:08
25K
15.53 mi12:48:121:58:067:3618:31
7:38
+0:05
30K
18.64 mi13:12:252:22:197:3824:13
7:48
+0:10
20M
20.00 mi13:23:092:33:037:3910:44
7:54
+0:06
21M
21.00 mi13:31:352:41:297:418:26
8:26
+0:32
35K
21.75 mi13:37:202:47:147:415:45
7:41
-0:45
23M
23.00 mi13:47:212:57:157:4210:01
8:00
+0:19
24M
24.00 mi13:55:003:04:547:427:39
7:39
-0:21
40K
24.85 mi14:01:463:11:407:436:46
7:55
+0:16
25.2M
25.20 mi14:04:473:14:417:443:01
8:45
+0:50
Finish
26.22 mi14:13:183:23:127:458:31
8:21
-0:24

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

7:30 /mi

Average Pace

7:45 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:14

90% of race

Time at Steady Pace

19:58

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:45 /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 mi11:13:4923:437:3823:43
7:38
#10866
10K
6.21 mi11:37:0847:027:3423:19
7:30
#10644
15K
9.32 mi12:00:391:10:337:3423:31
7:34
#10658
20K
12.43 mi12:24:321:34:267:3623:53
7:41
#10700
Half
13.11 mi12:29:411:39:357:365:09
7:33
#10695
25K
15.53 mi12:48:121:58:067:3618:31
7:38
#10500
30K
18.64 mi13:12:252:22:197:3824:13
7:48
#10251
20M
20.00 mi13:23:092:33:037:3910:44
7:54
#10183
21M
21.00 mi13:31:352:41:297:418:26
8:26
#10140
35K
21.75 mi13:37:202:47:147:415:45
7:41
#10111
23M
23.00 mi13:47:212:57:157:4210:01
8:00
#10059
24M
24.00 mi13:55:003:04:547:427:39
7:39
#9983
40K
24.85 mi14:01:463:11:407:436:46
7:55
#9929
25.2M
25.20 mi14:04:473:14:417:443:01
8:45
#9930
Finish
26.22 mi14:13:183:23:127:458:31
8:21
#10108
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi108662262226210767(Top 40%)2214(Top 19%)2214(Top 420%)
10K6.21 mi3.10 mi10644+2222142+1202142+12010497(Top 39%)2054(Top 18%)2054(Top 390%)
15K9.32 mi3.11 mi10658-142143-12143-110767(Top 40%)2214(Top 19%)2214(Top 420%)
20K12.43 mi3.11 mi10700-422189-462189-4610831(Top 41%)2326(Top 20%)2326(Top 441%)
Half13.11 mi0.68 mi10695+52181+82181+810664(Top 40%)2202(Top 19%)2202(Top 418%)
25K15.53 mi2.42 mi10500+1952094+872094+879841(Top 37%)1938(Top 17%)1938(Top 368%)
30K18.64 mi3.11 mi10251+2492024+702024+709336(Top 35%)1856(Top 16%)1856(Top 352%)
20M20.00 mi1.36 mi10183+682019+52019+59575(Top 36%)2051(Top 18%)2051(Top 389%)
21M21.00 mi1.00 mi10140+432012+72012+710088(Top 38%)2421(Top 21%)2421(Top 459%)
35K21.75 mi0.75 mi10111+292018-62018-69868(Top 37%)2293(Top 20%)2293(Top 435%)
23M23.00 mi1.25 mi10059+522023-52023-59753(Top 37%)2380(Top 21%)2380(Top 452%)
24M24.00 mi1.00 mi9983+762029-62029-68788(Top 33%)2000(Top 18%)2000(Top 380%)
40K24.85 mi0.85 mi9929+542031-22031-29473(Top 36%)2388(Top 21%)2388(Top 453%)
25.2M25.20 mi0.35 mi9930-12047-162047-1611043(Top 41%)3201(Top 28%)3201(Top 607%)
Finish26.22 mi1.02 mi10108-1782151-1042151-10414458(Top 54%)4966(Top 43%)4966(Top 942%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10767

Females

2214

F60-64

2214

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10497

Females

2054

F60-64

2054

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10767

Females

2214

F60-64

2214

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10831

Females

2326

F60-64

2326

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10664

Females

2202

F60-64

2202

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9841

Females

1938

F60-64

1938

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9336

Females

1856

F60-64

1856

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9575

Females

2051

F60-64

2051

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10088

Females

2421

F60-64

2421

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9868

Females

2293

F60-64

2293

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9753

Females

2380

F60-64

2380

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8788

Females

2000

F60-64

2000

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9473

Females

2388

F60-64

2388

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11043

Females

3201

F60-64

3201

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

14458

Females

4966

F60-64

4966

Passing Analysis

Category:
Athletes Passed
1926*
Passed By
1167
Net Change
+758
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10866
5K → 10K405183+222#10866#10644
10K → 15K181195-14#10644#10658
15K → 20K141183-42#10658#10700
20K → Half3126+5#10700#10695
Half → 25K22732+195#10695#10500
25K → 30K295*46+249#10500#10251
30K → 20M114*46+68#10251#10183
20M → 21M10562+43#10183#10140
21M → 35K5627+29#10140#10111
35K → 23M10755+52#10111#10059
23M → 24M11438+76#10059#9983
24M → 40K9137+54#9983#9929
40K → 25.2M3132-1#9929#9930
25.2M → Finish28205-178#9930#10108
TOTALS1926*1167+758

* 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