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BOSTON MARATHON 2024

Sandra Iris Santos

Bib: 18505•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 36%
Gender (Female)
#0 / 10924
Top 21%
Masters (Masters Women)
#0 / 6263
Top 10%
Division (F40-44)
#0 / 1613
Top 21%
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
7:36/mi
23:36
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:31
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:10:52
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:36:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:41:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:04/mi
2:01:04
↑ 66↓ 880.2%
30K· 18.64 mi
8:14/mi
2:26:38
↑ 181↓ 1480.2%
20M
8:08/mi
2:37:41
↑ 64↓ 500.2%
21M
8:48/mi
2:46:29
↑ 106↓ 241.6%
35K· 21.75 mi
7:41/mi
2:52:14
↑ 17↓ 861.7%
23M
7:54/mi
3:02:07
↑ 23↓ 630.6%
24M
8:04/mi
3:10:11
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:17:10
↓ 200.3%
25.2M
9:25/mi
3:20:25
↑ 13↓ 160.2%
Finish· 26.22 mi
8:13/mi
3:28:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:30
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:47:17
Pace8:11 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5923:367:3623:36
7:36
-
10K
6.21 mi11:37:5446:317:2922:55
7:23
-0:13
15K
9.32 mi12:02:151:10:527:3624:21
7:50
+0:27
20K
12.43 mi12:27:231:36:007:4325:08
8:05
+0:15
Half
13.11 mi12:32:531:41:307:455:30
8:04
-0:01
25K
15.53 mi12:52:272:01:047:4819:34
8:04
0:00
30K
18.64 mi13:18:012:26:387:5225:34
8:14
+0:10
20M
20.00 mi13:29:042:37:417:5311:03
8:08
-0:06
21M
21.00 mi13:37:522:46:297:568:48
8:48
+0:40
35K
21.75 mi13:43:372:52:147:555:45
7:41
-1:07
23M
23.00 mi13:53:303:02:077:559:53
7:54
+0:13
24M
24.00 mi14:01:343:10:117:558:04
8:04
+0:10
40K
24.85 mi14:08:333:17:107:566:59
8:10
+0:06
25.2M
25.20 mi14:11:483:20:257:573:15
9:25
+1:15
Finish
26.22 mi14:20:103:28:477:588:22
8:13
-1:12

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

7:23 /mi

Average Pace

7:58 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:16

25% of race

Time at Steady Pace

2:24:28

69% of race

Time at Slower Pace

12:03

6% of race

Average Pace: 7:58 /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 mi11:14:5923:367:3623:36
7:36
#11517
10K
6.21 mi11:37:5446:317:2922:55
7:23
#10376
15K
9.32 mi12:02:151:10:527:3624:21
7:50
#10996
20K
12.43 mi12:27:231:36:007:4325:08
8:05
#11349
Half
13.11 mi12:32:531:41:307:455:30
8:04
#11442
25K
15.53 mi12:52:272:01:047:4819:34
8:04
#11228
30K
18.64 mi13:18:012:26:387:5225:34
8:14
#10722
20M
20.00 mi13:29:042:37:417:5311:03
8:08
#10390
21M
21.00 mi13:37:522:46:297:568:48
8:48
#10138
35K
21.75 mi13:43:372:52:147:555:45
7:41
#9939
23M
23.00 mi13:53:303:02:077:559:53
7:54
#9542
24M
24.00 mi14:01:343:10:117:558:04
8:04
#9376
40K
24.85 mi14:08:333:17:107:566:59
8:10
#9245
25.2M
25.20 mi14:11:483:20:257:573:15
9:25
#9210
Finish
26.22 mi14:20:103:28:477:588:22
8:13
#9221
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi115172858285812240(Top 48%)3376(Top 31%)3376(Top 209%)
10K6.21 mi3.10 mi10376+11412253+6052253+6059262(Top 36%)1775(Top 16%)1775(Top 110%)
15K9.32 mi3.11 mi10996-6202636-3832636-38312240(Top 48%)3376(Top 31%)3376(Top 209%)
20K12.43 mi3.11 mi11349-3532862-2262862-22612455(Top 49%)3551(Top 33%)3551(Top 220%)
Half13.11 mi0.68 mi11442-932915-532915-5313246(Top 52%)4058(Top 37%)4058(Top 252%)
25K15.53 mi2.42 mi11228+2142843+722843+7210620(Top 42%)2790(Top 26%)2790(Top 173%)
30K18.64 mi3.11 mi10722+5062682+1612682+1619180(Top 36%)2304(Top 21%)2304(Top 143%)
20M20.00 mi1.36 mi10390+3322573+1092573+1097489(Top 29%)1763(Top 16%)1763(Top 109%)
21M21.00 mi1.00 mi10138+2522502+712502+717636(Top 30%)2008(Top 18%)2008(Top 124%)
35K21.75 mi0.75 mi9939+1992441+612441+616071(Top 24%)1346(Top 12%)1346(Top 83%)
23M23.00 mi1.25 mi9542+3972300+1412300+1415268(Top 21%)1132(Top 10%)1132(Top 70%)
24M24.00 mi1.00 mi9376+1662267+332267+337018(Top 27%)2008(Top 18%)2008(Top 124%)
40K24.85 mi0.85 mi9245+1312245+222245+226638(Top 26%)1953(Top 18%)1953(Top 121%)
25.2M25.20 mi0.35 mi9210+352252-72252-78462(Top 33%)2870(Top 26%)2870(Top 178%)
Finish26.22 mi1.02 mi9221-112296-442296-449839(Top 39%)3438(Top 31%)3438(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

12240

Females

3376

F40-44

3376

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

9262

Females

1775

F40-44

1775

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

12240

Females

3376

F40-44

3376

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12455

Females

3551

F40-44

3551

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13246

Females

4058

F40-44

4058

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

10620

Females

2790

F40-44

2790

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9180

Females

2304

F40-44

2304

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7489

Females

1763

F40-44

1763

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

7636

Females

2008

F40-44

2008

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6071

Females

1346

F40-44

1346

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

5268

Females

1132

F40-44

1132

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7018

Females

2008

F40-44

2008

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6638

Females

1953

F40-44

1953

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8462

Females

2870

F40-44

2870

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

9839

Females

3438

F40-44

3438

Passing Analysis

Category:
Athletes Passed
3965*
Passed By
1669
Net Change
+2296
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11517
5K → 10K115817+1141#11517#10376
10K → 15K73693-620#10376#10996
15K → 20K119472-353#10996#11349
20K → Half19112-93#11349#11442
Half → 25K30995+214#11442#11228
25K → 30K57165+506#11228#10722
30K → 20M3419+332#10722#10390
20M → 21M27321+252#10390#10138
21M → 35K204*5+199#10138#9939
35K → 23M402*5+397#9939#9542
23M → 24M182*16+166#9542#9376
24M → 40K15928+131#9376#9245
40K → 25.2M6328+35#9245#9210
25.2M → Finish92103-11#9210#9221
TOTALS3965*1669+2296

* 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