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BOSTON MARATHON 2024

Holly Blais

Bib: 12453•F

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 40%
Gender (Female)
#0 / 10924
Top 26%
Masters (Masters Women)
#0 / 6263
Top 14%
Division (F45-49)
#0 / 1753
Top 16%
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
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:04
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:34:27
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:39:48
↑ 19↓ 370.5%
25K· 15.53 mi
8:26/mi
2:00:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:28:13
↑ 181↓ 1480.2%
20M
9:40/mi
2:41:21
↑ 64↓ 500.2%
21M
9:12/mi
2:50:33
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:56:24
↑ 17↓ 861.7%
23M
8:17/mi
3:06:46
↑ 23↓ 630.6%
24M
7:58/mi
3:14:44
↓ 821.3%
40K· 24.85 mi
8:16/mi
3:21:48
↓ 200.3%
25.2M
9:08/mi
3:24:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:33:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:48
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:53:28
Pace8:39 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5323:197:3023:19
7:30
-
10K
6.21 mi11:16:1246:387:3023:19
7:30
0:00
15K
9.32 mi11:39:381:10:047:3123:26
7:33
+0:03
20K
12.43 mi12:04:011:34:277:3624:23
7:51
+0:18
Half
13.11 mi12:09:221:39:487:375:21
7:50
-0:01
25K
15.53 mi12:29:482:00:147:4420:26
8:26
+0:36
30K
18.64 mi12:57:472:28:137:5727:59
9:00
+0:34
20M
20.00 mi13:10:552:41:218:0413:08
9:40
+0:40
21M
21.00 mi13:20:072:50:338:079:12
9:12
-0:28
35K
21.75 mi13:25:582:56:248:075:51
7:49
-1:23
23M
23.00 mi13:36:203:06:468:0710:22
8:17
+0:28
24M
24.00 mi13:44:183:14:448:077:58
7:58
-0:19
40K
24.85 mi13:51:223:21:488:077:04
8:16
+0:18
25.2M
25.20 mi13:54:313:24:578:083:09
9:08
+0:52
Finish
26.22 mi14:02:503:33:168:088:19
8:10
-0:58

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

7:30 /mi

Average Pace

8:08 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:16

38% of race

Time at Steady Pace

1:18:32

37% of race

Time at Slower Pace

53:28

25% of race

Average Pace: 8:08 /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 mi10:52:5323:197:3023:19
7:30
#10815
10K
6.21 mi11:16:1246:387:3023:19
7:30
#10551
15K
9.32 mi11:39:381:10:047:3123:26
7:33
#10312
20K
12.43 mi12:04:011:34:277:3624:23
7:51
#10401
Half
13.11 mi12:09:221:39:487:375:21
7:50
#10442
25K
15.53 mi12:29:482:00:147:4420:26
8:26
#10854
30K
18.64 mi12:57:472:28:137:5727:59
9:00
#11298
20M
20.00 mi13:10:552:41:218:0413:08
9:40
#11667
21M
21.00 mi13:20:072:50:338:079:12
9:12
#11462
35K
21.75 mi13:25:582:56:248:075:51
7:49
#11252
23M
23.00 mi13:36:203:06:468:0710:22
8:17
#10940
24M
24.00 mi13:44:183:14:448:077:58
7:58
#10676
40K
24.85 mi13:51:223:21:488:077:04
8:16
#10467
25.2M
25.20 mi13:54:313:24:578:083:09
9:08
#10408
Finish
26.22 mi14:02:503:33:168:088:19
8:10
#10335
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi108152466246610012(Top 39%)2179(Top 20%)2179(Top 124%)
10K6.21 mi3.10 mi10551+2642358+1082358+10810332(Top 40%)2267(Top 21%)2267(Top 129%)
15K9.32 mi3.11 mi10312+2392247+1112247+11110012(Top 39%)2179(Top 20%)2179(Top 124%)
20K12.43 mi3.11 mi10401-892362-1152362-11510755(Top 42%)2692(Top 25%)2692(Top 154%)
Half13.11 mi0.68 mi10442-412386-242386-2411679(Top 46%)3160(Top 29%)3160(Top 180%)
25K15.53 mi2.42 mi10854-4122654-2682654-26812665(Top 50%)3860(Top 35%)3860(Top 220%)
30K18.64 mi3.11 mi11298-4442984-3302984-33013272(Top 52%)4433(Top 41%)4433(Top 253%)
20M20.00 mi1.36 mi11667-3693214-2303214-23015211(Top 60%)5788(Top 53%)5788(Top 330%)
21M21.00 mi1.00 mi11462+2053173+413173+419512(Top 37%)2959(Top 27%)2959(Top 169%)
35K21.75 mi0.75 mi11252+2103100+733100+736759(Top 26%)1650(Top 15%)1650(Top 94%)
23M23.00 mi1.25 mi10940+3123002+983002+987254(Top 28%)2036(Top 19%)2036(Top 116%)
24M24.00 mi1.00 mi10676+2642915+872915+876502(Top 25%)1773(Top 16%)1773(Top 101%)
40K24.85 mi0.85 mi10467+2092861+542861+547194(Top 28%)2224(Top 20%)2224(Top 127%)
25.2M25.20 mi0.35 mi10408+592843+182843+187249(Top 28%)2316(Top 21%)2316(Top 132%)
Finish26.22 mi1.02 mi10335+732846-32846-39571(Top 37%)3307(Top 30%)3307(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10012

Females

2179

F45-49

2179

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10332

Females

2267

F45-49

2267

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10012

Females

2179

F45-49

2179

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

10755

Females

2692

F45-49

2692

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

11679

Females

3160

F45-49

3160

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

12665

Females

3860

F45-49

3860

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

13272

Females

4433

F45-49

4433

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

15211

Females

5788

F45-49

5788

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

9512

Females

2959

F45-49

2959

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

6759

Females

1650

F45-49

1650

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7254

Females

2036

F45-49

2036

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6502

Females

1773

F45-49

1773

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7194

Females

2224

F45-49

2224

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7249

Females

2316

F45-49

2316

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

9571

Females

3307

F45-49

3307

Passing Analysis

Category:
Athletes Passed
2765*
Passed By
2285
Net Change
+480
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10815
5K → 10K424160+264#10815#10551
10K → 15K33293+239#10551#10312
15K → 20K186275-89#10312#10401
20K → Half2566-41#10401#10442
Half → 25K125537-412#10442#10854
25K → 30K156600-444#10854#11298
30K → 20M60429-369#11298#11667
20M → 21M24641+205#11667#11462
21M → 35K2111+210#11462#11252
35K → 23M32917+312#11252#10940
23M → 24M2640+264#10940#10676
24M → 40K218*9+209#10676#10467
40K → 25.2M667+59#10467#10408
25.2M → Finish12350+73#10408#10335
TOTALS2765*2285+480

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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