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BOSTON MARATHON 2024

Sylvie Lafrance

Bib: 21116•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F45-49)
#0 / 1753
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
8:44/mi
27:08
↑ 97↓ 3451.5%
10K· 6.21 mi
9:03/mi
55:15
↑ 79↓ 1380.4%
15K· 9.32 mi
9:33/mi
1:24:54
↑ 67↓ 78
20K· 12.43 mi
10:23/mi
1:57:11
↑ 106↓ 860.1%
Half· 13.11 mi
9:23/mi
2:03:35
↑ 19↓ 370.5%
25K· 15.53 mi
11:09/mi
2:30:38
↑ 66↓ 880.2%
30K· 18.64 mi
11:50/mi
3:07:24
↑ 181↓ 1480.2%
20M
11:13/mi
3:22:38
↑ 64↓ 500.2%
21M
12:44/mi
3:35:22
↑ 106↓ 241.6%
35K· 21.75 mi
10:54/mi
3:43:31
↑ 17↓ 861.7%
23M
11:23/mi
3:57:46
↑ 23↓ 630.6%
24M
10:36/mi
4:08:22
↓ 821.3%
40K· 24.85 mi
11:32/mi
4:18:14
↓ 200.3%
25.2M
12:54/mi
4:22:41
↑ 13↓ 160.2%
Finish· 26.22 mi
10:38/mi
4:33:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:35
Pace9:26 /mi
2nd Half
Distance13.11 mi
Time2:29:56
Pace11:26 /mi
📊Positive Split: 21.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0727:088:4427:08
8:44
-
10K
6.21 mi11:53:1455:158:5328:07
9:03
+0:19
15K
9.32 mi12:22:531:24:549:0729:39
9:33
+0:30
20K
12.43 mi12:55:101:57:119:2632:17
10:23
+0:50
Half
13.11 mi13:01:342:03:359:266:24
9:23
-1:00
25K
15.53 mi13:28:372:30:389:4227:03
11:09
+1:46
30K
18.64 mi14:05:233:07:2410:0336:46
11:50
+0:41
20M
20.00 mi14:20:373:22:3810:0815:14
11:13
-0:37
21M
21.00 mi14:33:213:35:2210:1512:44
12:44
+1:31
35K
21.75 mi14:41:303:43:3110:178:09
10:54
-1:50
23M
23.00 mi14:55:453:57:4610:2014:15
11:23
+0:29
24M
24.00 mi15:06:214:08:2210:2110:36
10:36
-0:47
40K
24.85 mi15:16:134:18:1410:239:52
11:32
+0:56
25.2M
25.20 mi15:20:404:22:4110:254:27
12:54
+1:22
Finish
26.22 mi15:31:304:33:3110:2610:50
10:38
-2:16

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

8:44 /mi

Average Pace

10:26 /mi

Slowest Pace

12:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:31:18

33% of race

Time at Steady Pace

1:58:24

43% of race

Time at Slower Pace

1:03:49

23% of race

Average Pace: 10:26 /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 mi11:25:0727:088:4427:08
8:44
#19000
10K
6.21 mi11:53:1455:158:5328:07
9:03
#19460
15K
9.32 mi12:22:531:24:549:0729:39
9:33
#19990
20K
12.43 mi12:55:101:57:119:2632:17
10:23
#20476
Half
13.11 mi13:01:342:03:359:266:24
9:23
#20437
25K
15.53 mi13:28:372:30:389:4227:03
11:09
#20690
30K
18.64 mi14:05:233:07:2410:0336:46
11:50
#20895
20M
20.00 mi14:20:373:22:3810:0815:14
11:13
#20806
21M
21.00 mi14:33:213:35:2210:1512:44
12:44
#20767
35K
21.75 mi14:41:303:43:3110:178:09
10:54
#20719
23M
23.00 mi14:55:453:57:4610:2014:15
11:23
#20641
24M
24.00 mi15:06:214:08:2210:2110:36
10:36
#20540
40K
24.85 mi15:16:134:18:1410:239:52
11:32
#20485
25.2M
25.20 mi15:20:404:22:4110:254:27
12:54
#20467
Finish
26.22 mi15:31:304:33:3110:2610:50
10:38
#20442
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi190007350735020801(Top 81%)8222(Top 75%)8222(Top 469%)
10K6.21 mi3.10 mi19460-4607567-2177567-21719939(Top 78%)7798(Top 71%)7798(Top 445%)
15K9.32 mi3.11 mi19990-5307834-2677834-26720801(Top 81%)8222(Top 75%)8222(Top 469%)
20K12.43 mi3.11 mi20476-4868077-2438077-24321440(Top 84%)8599(Top 79%)8599(Top 491%)
Half13.11 mi0.68 mi20437+398062+158062+1519710(Top 77%)7731(Top 71%)7731(Top 441%)
25K15.53 mi2.42 mi20690-2538214-1528214-15221799(Top 85%)8881(Top 81%)8881(Top 507%)
30K18.64 mi3.11 mi20895-2058378-1648378-16421638(Top 85%)8973(Top 82%)8973(Top 512%)
20M20.00 mi1.36 mi20806+898360+188360+1819772(Top 77%)8105(Top 74%)8105(Top 462%)
21M21.00 mi1.00 mi20767+398363-38363-320291(Top 79%)8471(Top 78%)8471(Top 483%)
35K21.75 mi0.75 mi20719+488360+38360+319581(Top 77%)8121(Top 74%)8121(Top 463%)
23M23.00 mi1.25 mi20641+788340+208340+2019373(Top 76%)8071(Top 74%)8071(Top 460%)
24M24.00 mi1.00 mi20540+1018307+338307+3318172(Top 71%)7557(Top 69%)7557(Top 431%)
40K24.85 mi0.85 mi20485+558300+78300+719438(Top 76%)8230(Top 75%)8230(Top 469%)
25.2M25.20 mi0.35 mi20467+188299+18299+119503(Top 76%)8278(Top 76%)8278(Top 472%)
Finish26.22 mi1.02 mi20442+258295+48295+420389(Top 80%)8671(Top 79%)8671(Top 495%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

20801

Females

8222

F45-49

8222

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

19939

Females

7798

F45-49

7798

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

20801

Females

8222

F45-49

8222

15K→20K

9.3 - 12.4 mi

Top 84%
×5story building
+106ft-86ft

Overall

21440

Females

8599

F45-49

8599

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

19710

Females

7731

F45-49

7731

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

21799

Females

8881

F45-49

8881

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

21638

Females

8973

F45-49

8973

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

19772

Females

8105

F45-49

8105

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20291

Females

8471

F45-49

8471

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

19581

Females

8121

F45-49

8121

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

19373

Females

8071

F45-49

8071

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18172

Females

7557

F45-49

7557

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

19438

Females

8230

F45-49

8230

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

19503

Females

8278

F45-49

8278

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

20389

Females

8671

F45-49

8671

Passing Analysis

Category:
Athletes Passed
1214
Passed By
2656
Net Change
-1442
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19000
5K → 10K115575-460#19000#19460
10K → 15K80610-530#19460#19990
15K → 20K71557-486#19990#20476
20K → Half5314+39#20476#20437
Half → 25K80333-253#20437#20690
25K → 30K116321-205#20690#20895
30K → 20M12233+89#20895#20806
20M → 21M10364+39#20806#20767
21M → 35K7729+48#20767#20719
35K → 23M11537+78#20719#20641
23M → 24M1109+101#20641#20540
24M → 40K8126+55#20540#20485
40K → 25.2M3315+18#20485#20467
25.2M → Finish5833+25#20467#20442
TOTALS12142656-1442
📊

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