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BOSTON MARATHON 2023

Giselle Santos

Bib: 15494•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 39%
Gender (Female)
#0 / 11423
Top 20%
Division (F18-39)
#0 / 4884
Top 35%
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
7:42/mi
23:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:38
↑ 67↓ 78
20K· 12.43 mi
7:41/mi
1:35:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:40:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
1:59:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:03/mi
2:24:32
↑ 181↓ 1480.2%
20M
8:01/mi
2:35:26
↑ 64↓ 500.2%
21M
8:01/mi
2:43:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:37/mi
2:49:09
↑ 17↓ 861.7%
23M
7:59/mi
2:59:09
↑ 23↓ 630.6%
24M
7:44/mi
3:06:53
↓ 821.3%
40K· 24.85 mi
7:48/mi
3:13:33
↓ 200.3%
25.2M
8:10/mi
3:16:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:23:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:42
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:43:09
Pace7:52 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:0423:557:4223:55
7:42
-
10K
6.21 mi11:41:4947:407:4023:45
7:39
-0:03
15K
9.32 mi12:05:471:11:387:4123:58
7:43
+0:04
20K
12.43 mi12:29:401:35:317:4123:53
7:41
-0:02
Half
13.11 mi12:34:511:40:427:415:11
7:36
-0:05
25K
15.53 mi12:53:411:59:327:4218:50
7:46
+0:10
30K
18.64 mi13:18:412:24:327:4525:00
8:03
+0:17
20M
20.00 mi13:29:352:35:267:4610:54
8:01
-0:02
21M
21.00 mi13:37:362:43:277:478:01
8:01
0:00
35K
21.75 mi13:43:182:49:097:475:42
7:37
-0:24
23M
23.00 mi13:53:182:59:097:4710:00
7:59
+0:22
24M
24.00 mi14:01:023:06:537:477:44
7:44
-0:15
40K
24.85 mi14:07:423:13:337:476:40
7:48
+0:04
25.2M
25.20 mi14:10:313:16:227:482:49
8:10
+0:22
Finish
26.22 mi14:18:003:23:517:477:29
7:21
-0:49

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

7:21 /mi

Average Pace

7:47 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:02

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:46 /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 mi11:18:0423:557:4223:55
7:42
#11436
10K
6.21 mi11:41:4947:407:4023:45
7:39
#11541
15K
9.32 mi12:05:471:11:387:4123:58
7:43
#11665
20K
12.43 mi12:29:401:35:317:4123:53
7:41
#11401
Half
13.11 mi12:34:511:40:427:415:11
7:36
#11373
25K
15.53 mi12:53:411:59:327:4218:50
7:46
#11258
30K
18.64 mi13:18:412:24:327:4525:00
8:03
#11192
20M
20.00 mi13:29:352:35:267:4610:54
8:01
#11110
21M
21.00 mi13:37:362:43:277:478:01
8:01
#10874
35K
21.75 mi13:43:182:49:097:475:42
7:37
#10797
23M
23.00 mi13:53:182:59:097:4710:00
7:59
#10717
24M
24.00 mi14:01:023:06:537:477:44
7:44
#10644
40K
24.85 mi14:07:423:13:337:476:40
7:48
#10534
25.2M
25.20 mi14:10:313:16:227:482:49
8:10
#10474
Finish
26.22 mi14:18:003:23:517:477:29
7:21
#10310
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi114362558255811966(Top 45%)2877(Top 25%)2877(Top 59%)
10K6.21 mi3.10 mi11541-1052624-662624-6611748(Top 44%)2724(Top 24%)2724(Top 56%)
15K9.32 mi3.11 mi11665-1242700-762700-7611966(Top 45%)2877(Top 25%)2877(Top 59%)
20K12.43 mi3.11 mi11401+2642552+1482552+14810832(Top 41%)2327(Top 20%)2327(Top 48%)
Half13.11 mi0.68 mi11373+282550+22550+211041(Top 41%)2383(Top 21%)2383(Top 49%)
25K15.53 mi2.42 mi11258+1152508+422508+4210862(Top 41%)2414(Top 21%)2414(Top 49%)
30K18.64 mi3.11 mi11192+662526-182526-1811271(Top 42%)2771(Top 24%)2771(Top 57%)
20M20.00 mi1.36 mi11110+822491+352491+3510439(Top 39%)2447(Top 21%)2447(Top 50%)
21M21.00 mi1.00 mi10874+2362398+932398+937492(Top 28%)1323(Top 12%)1323(Top 27%)
35K21.75 mi0.75 mi10797+772371+272371+279443(Top 35%)2120(Top 19%)2120(Top 43%)
23M23.00 mi1.25 mi10717+802368+32368+39675(Top 36%)2339(Top 20%)2339(Top 48%)
24M24.00 mi1.00 mi10644+732347+212347+219329(Top 35%)2259(Top 20%)2259(Top 46%)
40K24.85 mi0.85 mi10534+1102328+192328+198696(Top 33%)2032(Top 18%)2032(Top 42%)
25.2M25.20 mi0.35 mi10474+602304+242304+247596(Top 29%)1666(Top 15%)1666(Top 34%)
Finish26.22 mi1.02 mi10310+1642250+542250+547434(Top 28%)1602(Top 14%)1602(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21story building
+97ft-345ft

Overall

11966

Females

2877

F18-39

2877

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11748

Females

2724

F18-39

2724

10K→15K

6.2 - 9.3 mi

Top 45%
×3story building
+67ft-78ft

Overall

11966

Females

2877

F18-39

2877

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10832

Females

2327

F18-39

2327

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11041

Females

2383

F18-39

2383

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10862

Females

2414

F18-39

2414

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11271

Females

2771

F18-39

2771

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10439

Females

2447

F18-39

2447

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7492

Females

1323

F18-39

1323

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9443

Females

2120

F18-39

2120

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9675

Females

2339

F18-39

2339

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9329

Females

2259

F18-39

2259

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8696

Females

2032

F18-39

2032

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7596

Females

1666

F18-39

1666

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7434

Females

1602

F18-39

1602

Passing Analysis

Category:
Athletes Passed
2208*
Passed By
1082
Net Change
+1126
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11436
5K → 10K260365-105#11436#11541
10K → 15K132256-124#11541#11665
15K → 20K31652+264#11665#11401
20K → Half5022+28#11401#11373
Half → 25K17358+115#11373#11258
25K → 30K212146+66#11258#11192
30K → 20M126*44+82#11192#11110
20M → 21M2437+236#11110#10874
21M → 35K9215+77#10874#10797
35K → 23M12747+80#10797#10717
23M → 24M10532+73#10717#10644
24M → 40K12818+110#10644#10534
40K → 25.2M655+60#10534#10474
25.2M → Finish17915+164#10474#10310
TOTALS2208*1082+1126

* 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