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BOSTON MARATHON 2023

Melissa Delfino

Bib: 22019•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 32%
Division (F50-54)
#0 / 1207
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:11
Rank: #14768
Start → 5K
25:11 | 8:06/mi
10K· 6.21 mi
50:25
Rank: #15218 (-450)
5K → 10K
25:14 | 8:07/mi
15K· 9.32 mi
1:15:42
Rank: #15271 (-53)
10K → 15K
25:17 | 8:08/mi
20K· 12.43 mi
1:41:35
Rank: #15407 (-136)
15K → 20K
25:53 | 8:20/mi
Half· 13.11 mi
1:47:17
Rank: #15479 (-72)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:07:28
Rank: #15390 (+89)
Half → 25K
20:11 | 8:19/mi
30K· 18.64 mi
2:34:20
Rank: #15330 (+60)
25K → 30K
26:52 | 8:39/mi
20M
2:46:23
Rank: #15358 (-28)
30K → 20M
12:03 | 8:52/mi
21M
2:55:53
Rank: #15359 (-1)
20M → 21M
9:30 | 9:30/mi
35K· 21.75 mi
3:02:06
Rank: #15296 (+63)
21M → 35K
6:13 | 8:19/mi
23M
3:13:26
Rank: #15361 (-65)
35K → 23M
11:20 | 9:03/mi
24M
3:22:04
Rank: #15358 (+3)
23M → 24M
8:38 | 8:38/mi
40K· 24.85 mi
3:29:23
Rank: #15287 (+71)
24M → 40K
7:19 | 8:33/mi
25.2M
3:32:32
Rank: #15241 (+46)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:41:00
Rank: #15181 (+60)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:17
Pace8:11 /mi
2nd Half
Distance13.11 mi
Time1:53:43
Pace8:40 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5525:118:0625:11
8:06
-
10K
6.21 mi11:45:0950:258:0725:14
8:07
+0:01
15K
9.32 mi12:10:261:15:428:0725:17
8:08
+0:01
20K
12.43 mi12:36:191:41:358:1025:53
8:20
+0:12
Half
13.11 mi12:42:011:47:178:115:42
8:21
+0:01
25K
15.53 mi13:02:122:07:288:1220:11
8:19
-0:02
30K
18.64 mi13:29:042:34:208:1726:52
8:39
+0:20
20M
20.00 mi13:41:072:46:238:1912:03
8:52
+0:13
21M
21.00 mi13:50:372:55:538:239:30
9:30
+0:38
35K
21.75 mi13:56:503:02:068:226:13
8:19
-1:11
23M
23.00 mi14:08:103:13:268:2511:20
9:03
+0:44
24M
24.00 mi14:16:483:22:048:258:38
8:38
-0:25
40K
24.85 mi14:24:073:29:238:257:19
8:33
-0:05
25.2M
25.20 mi14:27:163:32:328:263:09
9:08
+0:35
Finish
26.22 mi14:35:443:41:008:268:28
8:19
-0:49

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

8:06 /mi

Average Pace

8:26 /mi

Slowest Pace

9:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:01

89% of race

Time at Steady Pace

23:59

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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 mi11:19:5525:118:0625:11
8:06
#14768
10K
6.21 mi11:45:0950:258:0725:14
8:07
#15218
15K
9.32 mi12:10:261:15:428:0725:17
8:08
#15271
20K
12.43 mi12:36:191:41:358:1025:53
8:20
#15407
Half
13.11 mi12:42:011:47:178:115:42
8:21
#15479
25K
15.53 mi13:02:122:07:288:1220:11
8:19
#15390
30K
18.64 mi13:29:042:34:208:1726:52
8:39
#15330
20M
20.00 mi13:41:072:46:238:1912:03
8:52
#15358
21M
21.00 mi13:50:372:55:538:239:30
9:30
#15359
35K
21.75 mi13:56:503:02:068:226:13
8:19
#15296
23M
23.00 mi14:08:103:13:268:2511:20
9:03
#15361
24M
24.00 mi14:16:483:22:048:258:38
8:38
#15358
40K
24.85 mi14:24:073:29:238:257:19
8:33
#15287
25.2M
25.20 mi14:27:163:32:328:263:09
9:08
#15241
Finish
26.22 mi14:35:443:41:008:268:28
8:19
#15181
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi147684499449915432(Top 58%)4935(Top 43%)4935(Top 409%)
10K6.21 mi3.10 mi15218-4504781-2824781-28215693(Top 59%)5076(Top 44%)5076(Top 421%)
15K9.32 mi3.11 mi15271-534833-524833-5215432(Top 58%)4935(Top 43%)4935(Top 409%)
20K12.43 mi3.11 mi15407-1364930-974930-9715807(Top 59%)5229(Top 46%)5229(Top 433%)
Half13.11 mi0.68 mi15479-724986-564986-5616849(Top 63%)5795(Top 51%)5795(Top 480%)
25K15.53 mi2.42 mi15390+894956+304956+3015113(Top 57%)4918(Top 43%)4918(Top 407%)
30K18.64 mi3.11 mi15330+604967-114967-1115213(Top 57%)5067(Top 44%)5067(Top 420%)
20M20.00 mi1.36 mi15358-285002-355002-3515826(Top 59%)5462(Top 48%)5462(Top 453%)
21M21.00 mi1.00 mi15359-15031-295031-2915965(Top 60%)5609(Top 49%)5609(Top 465%)
35K21.75 mi0.75 mi15296+635003+285003+2814196(Top 53%)4676(Top 41%)4676(Top 387%)
23M23.00 mi1.25 mi15361-655069-665069-6616321(Top 61%)5921(Top 52%)5921(Top 491%)
24M24.00 mi1.00 mi15358+35077-85077-815281(Top 57%)5393(Top 47%)5393(Top 447%)
40K24.85 mi0.85 mi15287+715051+265051+2613741(Top 52%)4608(Top 40%)4608(Top 382%)
25.2M25.20 mi0.35 mi15241+465028+235028+2313353(Top 50%)4424(Top 39%)4424(Top 367%)
Finish26.22 mi1.02 mi15181+605016+125016+1214185(Top 53%)4846(Top 42%)4846(Top 401%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15432

Females

4935

F50-54

4935

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15693

Females

5076

F50-54

5076

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15432

Females

4935

F50-54

4935

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15807

Females

5229

F50-54

5229

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16849

Females

5795

F50-54

5795

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15113

Females

4918

F50-54

4918

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15213

Females

5067

F50-54

5067

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15826

Females

5462

F50-54

5462

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

15965

Females

5609

F50-54

5609

21M→35K

21.0 - 21.8 mi

Top 53%
×7stories
+17ft-86ft

Overall

14196

Females

4676

F50-54

4676

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

16321

Females

5921

F50-54

5921

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15281

Females

5393

F50-54

5393

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13741

Females

4608

F50-54

4608

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13353

Females

4424

F50-54

4424

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14185

Females

4846

F50-54

4846

Passing Analysis

Category:
Athletes Passed
1456
Passed By
1869
Net Change
-413
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14768
5K → 10K132582-450#14768#15218
10K → 15K161214-53#15218#15271
15K → 20K122258-136#15271#15407
20K → Half1789-72#15407#15479
Half → 25K18192+89#15479#15390
25K → 30K210150+60#15390#15330
30K → 20M79107-28#15330#15358
20M → 21M8788-1#15358#15359
21M → 35K7916+63#15359#15296
35K → 23M65130-65#15296#15361
23M → 24M6865+3#15361#15358
24M → 40K10029+71#15358#15287
40K → 25.2M5711+46#15287#15241
25.2M → Finish9838+60#15241#15181
TOTALS14561869-413
📊

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