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BOSTON MARATHON 2023

Melissa James

Bib: 18151•F

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 42%
Masters (Masters Women)
#0 / 6539
Top 30%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:17
Rank: #17279
Start → 5K
26:17 | 8:28/mi
10K· 6.21 mi
52:26
Rank: #17459 (-180)
5K → 10K
26:09 | 8:25/mi
15K· 9.32 mi
1:18:33
Rank: #17380 (+79)
10K → 15K
26:07 | 8:24/mi
20K· 12.43 mi
1:45:08
Rank: #17317 (+63)
15K → 20K
26:35 | 8:33/mi
Half· 13.11 mi
1:50:55
Rank: #17331 (-14)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:11:17
Rank: #17051 (+280)
Half → 25K
20:22 | 8:24/mi
30K· 18.64 mi
2:37:48
Rank: #16561 (+490)
25K → 30K
26:31 | 8:32/mi
20M
2:49:23
Rank: #16335 (+226)
30K → 20M
11:35 | 8:31/mi
21M
2:58:17
Rank: #16114 (+221)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
3:04:18
Rank: #15968 (+146)
21M → 35K
6:01 | 8:03/mi
23M
3:14:40
Rank: #15700 (+268)
35K → 23M
10:22 | 8:17/mi
24M
3:22:32
Rank: #15484 (+216)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:29:08
Rank: #15203 (+281)
24M → 40K
6:36 | 7:43/mi
25.2M
3:32:03
Rank: #15100 (+103)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:39:39
Rank: #14848 (+252)
25.2M → Finish
7:36 | 7:27/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:55
Pace8:28 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:48:44
Pace8:18 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2526:178:2826:17
8:28
-
10K
6.21 mi11:43:3452:268:2626:09
8:25
-0:03
15K
9.32 mi12:09:411:18:338:2626:07
8:24
-0:01
20K
12.43 mi12:36:161:45:088:2826:35
8:33
+0:09
Half
13.11 mi12:42:031:50:558:285:47
8:29
-0:04
25K
15.53 mi13:02:252:11:178:2720:22
8:24
-0:05
30K
18.64 mi13:28:562:37:488:2826:31
8:32
+0:08
20M
20.00 mi13:40:312:49:238:2811:35
8:31
-0:01
21M
21.00 mi13:49:252:58:178:298:54
8:54
+0:23
35K
21.75 mi13:55:263:04:188:286:01
8:03
-0:51
23M
23.00 mi14:05:483:14:408:2810:22
8:17
+0:14
24M
24.00 mi14:13:403:22:328:267:52
7:52
-0:25
40K
24.85 mi14:20:163:29:088:256:36
7:43
-0:09
25.2M
25.20 mi14:23:113:32:038:252:55
8:27
+0:44
Finish
26.22 mi14:30:473:39:398:237:36
7:27
-1:00

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

7:27 /mi

Average Pace

8:23 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:05

13% of race

Time at Steady Pace

3:02:40

83% of race

Time at Slower Pace

8:54

4% of race

Average Pace: 8:23 /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 mi11:17:2526:178:2826:17
8:28
#17279
10K
6.21 mi11:43:3452:268:2626:09
8:25
#17459
15K
9.32 mi12:09:411:18:338:2626:07
8:24
#17380
20K
12.43 mi12:36:161:45:088:2826:35
8:33
#17317
Half
13.11 mi12:42:031:50:558:285:47
8:29
#17331
25K
15.53 mi13:02:252:11:178:2720:22
8:24
#17051
30K
18.64 mi13:28:562:37:488:2826:31
8:32
#16561
20M
20.00 mi13:40:312:49:238:2811:35
8:31
#16335
21M
21.00 mi13:49:252:58:178:298:54
8:54
#16114
35K
21.75 mi13:55:263:04:188:286:01
8:03
#15968
23M
23.00 mi14:05:483:14:408:2810:22
8:17
#15700
24M
24.00 mi14:13:403:22:328:267:52
7:52
#15484
40K
24.85 mi14:20:163:29:088:256:36
7:43
#15203
25.2M
25.20 mi14:23:113:32:038:252:55
8:27
#15100
Finish
26.22 mi14:30:473:39:398:237:36
7:27
#14848
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi172796111611117184(Top 65%)6034(Top 53%)6034(Top 321%)
10K6.21 mi3.10 mi17459-1806201-906201-9017679(Top 66%)6291(Top 55%)6291(Top 335%)
15K9.32 mi3.11 mi17380+796141+606141+6017184(Top 65%)6034(Top 53%)6034(Top 321%)
20K12.43 mi3.11 mi17317+636116+256116+2517214(Top 65%)6054(Top 53%)6054(Top 322%)
Half13.11 mi0.68 mi17331-146121-56121-517585(Top 66%)6222(Top 54%)6222(Top 331%)
25K15.53 mi2.42 mi17051+2805974+1475974+14715583(Top 59%)5192(Top 45%)5192(Top 276%)
30K18.64 mi3.11 mi16561+4905719+2555719+25514533(Top 55%)4645(Top 41%)4645(Top 247%)
20M20.00 mi1.36 mi16335+2265605+1145605+11413796(Top 52%)4295(Top 38%)4295(Top 229%)
21M21.00 mi1.00 mi16114+2215483+1225483+12212877(Top 48%)3885(Top 34%)3885(Top 207%)
35K21.75 mi0.75 mi15968+1465413+705413+7012500(Top 47%)3719(Top 33%)3719(Top 198%)
23M23.00 mi1.25 mi15700+2685282+1315282+13111790(Top 44%)3412(Top 30%)3412(Top 182%)
24M24.00 mi1.00 mi15484+2165163+1195163+11910340(Top 39%)2772(Top 24%)2772(Top 148%)
40K24.85 mi0.85 mi15203+2814995+1684995+1688164(Top 31%)1828(Top 16%)1828(Top 97%)
25.2M25.20 mi0.35 mi15100+1034944+514944+519394(Top 35%)2453(Top 21%)2453(Top 131%)
Finish26.22 mi1.02 mi14848+2524819+1254819+1258298(Top 31%)1973(Top 17%)1973(Top 105%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

17184

Females

6034

F40-44

6034

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17679

Females

6291

F40-44

6291

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

17184

Females

6034

F40-44

6034

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

17214

Females

6054

F40-44

6054

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17585

Females

6222

F40-44

6222

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

15583

Females

5192

F40-44

5192

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

14533

Females

4645

F40-44

4645

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13796

Females

4295

F40-44

4295

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12877

Females

3885

F40-44

3885

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

12500

Females

3719

F40-44

3719

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11790

Females

3412

F40-44

3412

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10340

Females

2772

F40-44

2772

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8164

Females

1828

F40-44

1828

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9394

Females

2453

F40-44

2453

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8298

Females

1973

F40-44

1973

Passing Analysis

Category:
Athletes Passed
3201
Passed By
770
Net Change
+2431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17279
5K → 10K227407-180#17279#17459
10K → 15K232153+79#17459#17380
15K → 20K194131+63#17380#17317
20K → Half2135-14#17317#17331
Half → 25K29616+280#17331#17051
25K → 30K4955+490#17051#16561
30K → 20M2315+226#16561#16335
20M → 21M2298+221#16335#16114
21M → 35K1493+146#16114#15968
35K → 23M2713+268#15968#15700
23M → 24M2171+216#15700#15484
24M → 40K2821+281#15484#15203
40K → 25.2M1041+103#15203#15100
25.2M → Finish2531+252#15100#14848
TOTALS3201770+2431
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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