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BOSTON MARATHON 2023

Melanie Tremblay

Bib: 20931•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 42%
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
8:20/mi
25:52
↑ 97↓ 3451.5%
10K· 6.21 mi
8:15/mi
51:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:17:29
↑ 67↓ 78
20K· 12.43 mi
8:27/mi
1:43:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:49:33
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:10:29
↑ 66↓ 880.2%
30K· 18.64 mi
9:01/mi
2:38:30
↑ 181↓ 1480.2%
20M
9:12/mi
2:51:00
↑ 64↓ 500.2%
21M
9:38/mi
3:00:38
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
3:07:10
↑ 17↓ 861.7%
23M
9:08/mi
3:18:36
↑ 23↓ 630.6%
24M
9:05/mi
3:27:41
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:35:38
↓ 200.3%
25.2M
9:05/mi
3:38:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:47:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:33
Pace8:21 /mi
2nd Half
Distance13.11 mi
Time1:57:56
Pace9:00 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1525:528:2025:52
8:20
-
10K
6.21 mi11:48:5451:318:1725:39
8:15
-0:05
15K
9.32 mi12:14:521:17:298:1925:58
8:21
+0:06
20K
12.43 mi12:41:081:43:458:2126:16
8:27
+0:06
Half
13.11 mi12:46:561:49:338:215:48
8:30
+0:03
25K
15.53 mi13:07:522:10:298:2420:56
8:38
+0:08
30K
18.64 mi13:35:532:38:308:3028:01
9:01
+0:23
20M
20.00 mi13:48:232:51:008:3312:30
9:12
+0:11
21M
21.00 mi13:58:013:00:388:369:38
9:38
+0:26
35K
21.75 mi14:04:333:07:108:366:32
8:44
-0:54
23M
23.00 mi14:15:593:18:368:3811:26
9:08
+0:24
24M
24.00 mi14:25:043:27:418:399:05
9:05
-0:03
40K
24.85 mi14:33:013:35:388:417:57
9:18
+0:13
25.2M
25.20 mi14:36:093:38:468:413:08
9:05
-0:13
Finish
26.22 mi14:44:523:47:298:418:43
8:33
-0:32

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

8:15 /mi

Average Pace

8:41 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:45

76% of race

Time at Steady Pace

53:44

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:41 /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 mi11:23:1525:528:2025:52
8:20
#16332
10K
6.21 mi11:48:5451:318:1725:39
8:15
#16446
15K
9.32 mi12:14:521:17:298:1925:58
8:21
#16607
20K
12.43 mi12:41:081:43:458:2126:16
8:27
#16625
Half
13.11 mi12:46:561:49:338:215:48
8:30
#16679
25K
15.53 mi13:07:522:10:298:2420:56
8:38
#16736
30K
18.64 mi13:35:532:38:308:3028:01
9:01
#16799
20M
20.00 mi13:48:232:51:008:3312:30
9:12
#16836
21M
21.00 mi13:58:013:00:388:369:38
9:38
#16805
35K
21.75 mi14:04:333:07:108:366:32
8:44
#16789
23M
23.00 mi14:15:593:18:368:3811:26
9:08
#16794
24M
24.00 mi14:25:043:27:418:399:05
9:05
#16840
40K
24.85 mi14:33:013:35:388:417:57
9:18
#16845
25.2M
25.20 mi14:36:093:38:468:413:08
9:05
#16786
Finish
26.22 mi14:44:523:47:298:418:43
8:33
#16744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi163325488548816912(Top 64%)5854(Top 51%)5854(Top 322%)
10K6.21 mi3.10 mi16446-1145553-655553-6516631(Top 62%)5657(Top 50%)5657(Top 311%)
15K9.32 mi3.11 mi16607-1615667-1145667-11416912(Top 64%)5854(Top 51%)5854(Top 322%)
20K12.43 mi3.11 mi16625-185692-255692-2516583(Top 62%)5698(Top 50%)5698(Top 314%)
Half13.11 mi0.68 mi16679-545732-405732-4017739(Top 67%)6317(Top 55%)6317(Top 348%)
25K15.53 mi2.42 mi16736-575791-595791-5917015(Top 64%)6015(Top 53%)6015(Top 331%)
30K18.64 mi3.11 mi16799-635845-545845-5417271(Top 65%)6226(Top 55%)6226(Top 343%)
20M20.00 mi1.36 mi16836-375879-345879-3417545(Top 66%)6473(Top 57%)6473(Top 356%)
21M21.00 mi1.00 mi16805+315869+105869+1016597(Top 62%)5967(Top 52%)5967(Top 328%)
35K21.75 mi0.75 mi16789+165872-35872-316615(Top 62%)6055(Top 53%)6055(Top 333%)
23M23.00 mi1.25 mi16794-55898-265898-2616706(Top 63%)6137(Top 54%)6137(Top 338%)
24M24.00 mi1.00 mi16840-465952-545952-5417602(Top 66%)6686(Top 59%)6686(Top 368%)
40K24.85 mi0.85 mi16845-55974-225974-2217529(Top 66%)6694(Top 59%)6694(Top 368%)
25.2M25.20 mi0.35 mi16786+595941+335941+3313115(Top 49%)4313(Top 38%)4313(Top 237%)
Finish26.22 mi1.02 mi16744+425929+125929+1215762(Top 59%)5682(Top 50%)5682(Top 313%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

16912

Females

5854

F45-49

5854

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

16631

Females

5657

F45-49

5657

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

16912

Females

5854

F45-49

5854

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

16583

Females

5698

F45-49

5698

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

17739

Females

6317

F45-49

6317

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

17015

Females

6015

F45-49

6015

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17271

Females

6226

F45-49

6226

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17545

Females

6473

F45-49

6473

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16597

Females

5967

F45-49

5967

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16615

Females

6055

F45-49

6055

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16706

Females

6137

F45-49

6137

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17602

Females

6686

F45-49

6686

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17529

Females

6694

F45-49

6694

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13115

Females

4313

F45-49

4313

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15762

Females

5682

F45-49

5682

Passing Analysis

Category:
Athletes Passed
1377
Passed By
1789
Net Change
-412
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16332
5K → 10K236350-114#16332#16446
10K → 15K137298-161#16446#16607
15K → 20K170188-18#16607#16625
20K → Half1569-54#16625#16679
Half → 25K112169-57#16679#16736
25K → 30K155218-63#16736#16799
30K → 20M66103-37#16799#16836
20M → 21M9261+31#16836#16805
21M → 35K5943+16#16805#16789
35K → 23M8085-5#16789#16794
23M → 24M4490-46#16794#16840
24M → 40K5661-5#16840#16845
40K → 25.2M667+59#16845#16786
25.2M → Finish8947+42#16786#16744
TOTALS13771789-412
📊

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