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BOSTON MARATHON 2023

Melissa Crow

Bib: 21124•F

CA

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 33%
Division (F45-49)
#0 / 1817
Top 37%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:06
Rank: #16888
Start → 5K
26:06 | 8:24/mi
10K· 6.21 mi
51:14
Rank: #16158 (+730)
5K → 10K
25:08 | 8:05/mi
15K· 9.32 mi
1:15:54
Rank: #15446 (+712)
10K → 15K
24:40 | 7:56/mi
20K· 12.43 mi
1:41:11
Rank: #15192 (+254)
15K → 20K
25:17 | 8:08/mi
Half· 13.11 mi
1:46:36
Rank: #15117 (+75)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:06:29
Rank: #14931 (+186)
Half → 25K
19:53 | 8:12/mi
30K· 18.64 mi
2:33:06
Rank: #14906 (+25)
25K → 30K
26:37 | 8:34/mi
20M
2:45:09
Rank: #14955 (-49)
30K → 20M
12:03 | 8:52/mi
21M
2:54:41
Rank: #15012 (-57)
20M → 21M
9:32 | 9:32/mi
35K· 21.75 mi
3:01:13
Rank: #15066 (-54)
21M → 35K
6:32 | 8:44/mi
23M
3:12:27
Rank: #15082 (-16)
35K → 23M
11:14 | 8:58/mi
24M
3:21:14
Rank: #15114 (-32)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:28:59
Rank: #15169 (-55)
24M → 40K
7:45 | 9:04/mi
25.2M
3:32:29
Rank: #15228 (-59)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:41:26
Rank: #15290 (-62)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:36
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:54:50
Pace8:46 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4526:068:2426:06
8:24
-
10K
6.21 mi11:46:5351:148:1525:08
8:05
-0:19
15K
9.32 mi12:11:331:15:548:0924:40
7:56
-0:09
20K
12.43 mi12:36:501:41:118:0925:17
8:08
+0:12
Half
13.11 mi12:42:151:46:368:085:25
7:56
-0:12
25K
15.53 mi13:02:082:06:298:0919:53
8:12
+0:16
30K
18.64 mi13:28:452:33:068:1326:37
8:34
+0:22
20M
20.00 mi13:40:482:45:098:1512:03
8:52
+0:18
21M
21.00 mi13:50:202:54:418:199:32
9:32
+0:40
35K
21.75 mi13:56:523:01:138:206:32
8:44
-0:48
23M
23.00 mi14:08:063:12:278:2211:14
8:58
+0:14
24M
24.00 mi14:16:533:21:148:238:47
8:47
-0:11
40K
24.85 mi14:24:383:28:598:247:45
9:04
+0:17
25.2M
25.20 mi14:28:083:32:298:263:30
10:09
+1:05
Finish
26.22 mi14:37:053:41:268:278:57
8:47
-1:22

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

7:56 /mi

Average Pace

8:27 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:29

57% of race

Time at Steady Pace

1:14:10

33% of race

Time at Slower Pace

20:47

9% of race

Average Pace: 8:27 /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 mi11:21:4526:068:2426:06
8:24
#16888
10K
6.21 mi11:46:5351:148:1525:08
8:05
#16158
15K
9.32 mi12:11:331:15:548:0924:40
7:56
#15446
20K
12.43 mi12:36:501:41:118:0925:17
8:08
#15192
Half
13.11 mi12:42:151:46:368:085:25
7:56
#15117
25K
15.53 mi13:02:082:06:298:0919:53
8:12
#14931
30K
18.64 mi13:28:452:33:068:1326:37
8:34
#14906
20M
20.00 mi13:40:482:45:098:1512:03
8:52
#14955
21M
21.00 mi13:50:202:54:418:199:32
9:32
#15012
35K
21.75 mi13:56:523:01:138:206:32
8:44
#15066
23M
23.00 mi14:08:063:12:278:2211:14
8:58
#15082
24M
24.00 mi14:16:533:21:148:238:47
8:47
#15114
40K
24.85 mi14:24:383:28:598:247:45
9:04
#15169
25.2M
25.20 mi14:28:083:32:298:263:30
10:09
#15228
Finish
26.22 mi14:37:053:41:268:278:57
8:47
#15290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi168885850585013928(Top 52%)4045(Top 35%)4045(Top 223%)
10K6.21 mi3.10 mi16158+7305370+4805370+48015451(Top 58%)4937(Top 43%)4937(Top 272%)
15K9.32 mi3.11 mi15446+7124943+4274943+42713928(Top 52%)4045(Top 35%)4045(Top 223%)
20K12.43 mi3.11 mi15192+2544804+1394804+13914524(Top 55%)4423(Top 39%)4423(Top 243%)
Half13.11 mi0.68 mi15117+754757+474757+4713980(Top 53%)4089(Top 36%)4089(Top 225%)
25K15.53 mi2.42 mi14931+1864665+924665+9214258(Top 54%)4372(Top 38%)4372(Top 241%)
30K18.64 mi3.11 mi14906+254683-184683-1814738(Top 55%)4776(Top 42%)4776(Top 263%)
20M20.00 mi1.36 mi14955-494742-594742-5915827(Top 59%)5463(Top 48%)5463(Top 301%)
21M21.00 mi1.00 mi15012-574803-614803-6116126(Top 61%)5693(Top 50%)5693(Top 313%)
35K21.75 mi0.75 mi15066-544857-544857-5416597(Top 62%)6037(Top 53%)6037(Top 332%)
23M23.00 mi1.25 mi15082-164894-374894-3715924(Top 60%)5694(Top 50%)5694(Top 313%)
24M24.00 mi1.00 mi15114-324925-314925-3116112(Top 61%)5862(Top 51%)5862(Top 323%)
40K24.85 mi0.85 mi15169-554976-514976-5116492(Top 62%)6122(Top 54%)6122(Top 337%)
25.2M25.20 mi0.35 mi15228-595021-455021-4517959(Top 67%)6930(Top 61%)6930(Top 381%)
Finish26.22 mi1.02 mi15290-625077-565077-5616953(Top 64%)6340(Top 56%)6340(Top 349%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13928

Females

4045

F45-49

4045

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

15451

Females

4937

F45-49

4937

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13928

Females

4045

F45-49

4045

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14524

Females

4423

F45-49

4423

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

13980

Females

4089

F45-49

4089

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14258

Females

4372

F45-49

4372

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14738

Females

4776

F45-49

4776

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

15827

Females

5463

F45-49

5463

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

16126

Females

5693

F45-49

5693

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16597

Females

6037

F45-49

6037

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15924

Females

5694

F45-49

5694

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16112

Females

5862

F45-49

5862

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16492

Females

6122

F45-49

6122

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17959

Females

6930

F45-49

6930

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

16953

Females

6340

F45-49

6340

Passing Analysis

Category:
Athletes Passed
2776
Passed By
1178
Net Change
+1598
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16888
5K → 10K82090+730#16888#16158
10K → 15K73321+712#16158#15446
15K → 20K30955+254#15446#15192
20K → Half8914+75#15192#15117
Half → 25K23145+186#15117#14931
25K → 30K188163+25#14931#14906
30K → 20M62111-49#14906#14955
20M → 21M72129-57#14955#15012
21M → 35K3690-54#15012#15066
35K → 23M7389-16#15066#15082
23M → 24M4880-32#15082#15114
24M → 40K46101-55#15114#15169
40K → 25.2M2382-59#15169#15228
25.2M → Finish46108-62#15228#15290
TOTALS27761178+1598
📊

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