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BOSTON MARATHON 2023

Melanie Macdermid

Bib: 21907•F

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
8:25/mi
26:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:26/mi
52:20
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:18:46
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:45:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:40/mi
1:51:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:13:08
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:42:17
↑ 181↓ 1480.2%
20M
9:25/mi
2:55:05
↑ 64↓ 500.2%
21M
9:59/mi
3:05:04
↑ 106↓ 241.6%
35K· 21.75 mi
9:24/mi
3:12:06
↑ 17↓ 861.7%
23M
9:37/mi
3:24:08
↑ 23↓ 630.6%
24M
9:30/mi
3:33:38
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:41:45
↓ 200.3%
25.2M
10:29/mi
3:45:22
↑ 13↓ 160.2%
Finish· 26.22 mi
9:23/mi
3:54:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:35
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:03:21
Pace9:25 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1526:088:2526:08
8:25
-
10K
6.21 mi11:45:2752:208:2526:12
8:26
+0:01
15K
9.32 mi12:11:531:18:468:2726:26
8:30
+0:04
20K
12.43 mi12:38:471:45:408:3026:54
8:39
+0:09
Half
13.11 mi12:44:421:51:358:315:55
8:40
+0:01
25K
15.53 mi13:06:152:13:088:3421:33
8:53
+0:13
30K
18.64 mi13:35:242:42:178:4229:09
9:23
+0:30
20M
20.00 mi13:48:122:55:058:4512:48
9:25
+0:02
21M
21.00 mi13:58:113:05:048:499:59
9:59
+0:34
35K
21.75 mi14:05:133:12:068:507:02
9:24
-0:35
23M
23.00 mi14:17:153:24:088:5312:02
9:37
+0:13
24M
24.00 mi14:26:453:33:388:549:30
9:30
-0:07
40K
24.85 mi14:34:523:41:458:558:07
9:30
0:00
25.2M
25.20 mi14:38:293:45:228:573:37
10:29
+0:59
Finish
26.22 mi14:48:033:54:568:589:34
9:23
-1:06

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

8:25 /mi

Average Pace

8:58 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:08

57% of race

Time at Steady Pace

1:28:12

38% of race

Time at Slower Pace

13:36

6% of race

Average Pace: 8:58 /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 mi11:19:1526:088:2526:08
8:25
#16981
10K
6.21 mi11:45:2752:208:2526:12
8:26
#17372
15K
9.32 mi12:11:531:18:468:2726:26
8:30
#17531
20K
12.43 mi12:38:471:45:408:3026:54
8:39
#17585
Half
13.11 mi12:44:421:51:358:315:55
8:40
#17644
25K
15.53 mi13:06:152:13:088:3421:33
8:53
#17756
30K
18.64 mi13:35:242:42:178:4229:09
9:23
#18014
20M
20.00 mi13:48:122:55:058:4512:48
9:25
#18065
21M
21.00 mi13:58:113:05:048:499:59
9:59
#18043
35K
21.75 mi14:05:133:12:068:507:02
9:24
#18126
23M
23.00 mi14:17:153:24:088:5312:02
9:37
#18179
24M
24.00 mi14:26:453:33:388:549:30
9:30
#18247
40K
24.85 mi14:34:523:41:458:558:07
9:30
#18272
25.2M
25.20 mi14:38:293:45:228:573:37
10:29
#18282
Finish
26.22 mi14:48:033:54:568:589:34
9:23
#18365
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi169815920592017882(Top 67%)6432(Top 56%)6432(Top 354%)
10K6.21 mi3.10 mi17372-3916148-2286148-22817832(Top 67%)6393(Top 56%)6393(Top 352%)
15K9.32 mi3.11 mi17531-1596229-816229-8117882(Top 67%)6432(Top 56%)6432(Top 354%)
20K12.43 mi3.11 mi17585-546266-376266-3717878(Top 67%)6443(Top 56%)6443(Top 355%)
Half13.11 mi0.68 mi17644-596310-446310-4418817(Top 71%)6974(Top 61%)6974(Top 384%)
25K15.53 mi2.42 mi17756-1126386-766386-7618404(Top 69%)6790(Top 59%)6790(Top 374%)
30K18.64 mi3.11 mi18014-2586573-1876573-18718964(Top 71%)7175(Top 63%)7175(Top 395%)
20M20.00 mi1.36 mi18065-516628-556628-5518550(Top 70%)7052(Top 62%)7052(Top 388%)
21M21.00 mi1.00 mi18043+226617+116617+1117988(Top 68%)6753(Top 59%)6753(Top 372%)
35K21.75 mi0.75 mi18126-836679-626679-6219556(Top 73%)7681(Top 67%)7681(Top 423%)
23M23.00 mi1.25 mi18179-536715-366715-3618778(Top 71%)7282(Top 64%)7282(Top 401%)
24M24.00 mi1.00 mi18247-686768-536768-5319220(Top 72%)7569(Top 66%)7569(Top 417%)
40K24.85 mi0.85 mi18272-256802-346802-3418321(Top 69%)7113(Top 62%)7113(Top 391%)
25.2M25.20 mi0.35 mi18282-106809-76809-719081(Top 72%)7542(Top 66%)7542(Top 415%)
Finish26.22 mi1.02 mi18365-836860-516860-5119720(Top 74%)7844(Top 69%)7844(Top 432%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17882

Females

6432

F45-49

6432

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17832

Females

6393

F45-49

6393

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17882

Females

6432

F45-49

6432

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17878

Females

6443

F45-49

6443

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

18817

Females

6974

F45-49

6974

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18404

Females

6790

F45-49

6790

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18964

Females

7175

F45-49

7175

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18550

Females

7052

F45-49

7052

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

17988

Females

6753

F45-49

6753

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19556

Females

7681

F45-49

7681

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

18778

Females

7282

F45-49

7282

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19220

Females

7569

F45-49

7569

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18321

Females

7113

F45-49

7113

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19081

Females

7542

F45-49

7542

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19720

Females

7844

F45-49

7844

Passing Analysis

Category:
Athletes Passed
1054
Passed By
2438
Net Change
-1384
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16981
5K → 10K169560-391#16981#17372
10K → 15K129288-159#17372#17531
15K → 20K161215-54#17531#17585
20K → Half1877-59#17585#17644
Half → 25K77189-112#17644#17756
25K → 30K113371-258#17756#18014
30K → 20M74125-51#18014#18065
20M → 21M10684+22#18065#18043
21M → 35K29112-83#18043#18126
35K → 23M56109-53#18126#18179
23M → 24M32100-68#18179#18247
24M → 40K5075-25#18247#18272
40K → 25.2M1727-10#18272#18282
25.2M → Finish23106-83#18282#18365
TOTALS10542438-1384
📊

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