Boston Marathon logo
BOSTON MARATHON 2023

Maria Sanchez Marquez

Bib: 17212•F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 36%
Division (F18-39)
#0 / 4884
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
8:05/mi
25:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:04/mi
50:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:07/mi
1:15:26
↑ 67↓ 78
20K· 12.43 mi
8:18/mi
1:41:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:46:49
↑ 19↓ 370.5%
25K· 15.53 mi
8:20/mi
2:07:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:33:35
↑ 181↓ 1480.2%
20M
8:20/mi
2:44:54
↑ 64↓ 500.2%
21M
8:46/mi
2:53:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:53/mi
2:59:34
↑ 17↓ 861.7%
23M
8:06/mi
3:09:43
↑ 23↓ 630.6%
24M
7:58/mi
3:17:41
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:24:35
↓ 200.3%
25.2M
8:22/mi
3:27:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:42/mi
3:35:19
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:49
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:48:30
Pace8:17 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3925:078:0525:07
8:05
-
10K
6.21 mi11:45:4450:128:0525:05
8:04
-0:01
15K
9.32 mi12:10:581:15:268:0625:14
8:07
+0:03
20K
12.43 mi12:36:461:41:148:0925:48
8:18
+0:11
Half
13.11 mi12:42:211:46:498:095:35
8:11
-0:07
25K
15.53 mi13:02:332:07:018:1120:12
8:20
+0:09
30K
18.64 mi13:29:072:33:358:1426:34
8:33
+0:13
20M
20.00 mi13:40:262:44:548:1511:19
8:20
-0:13
21M
21.00 mi13:49:122:53:408:168:46
8:46
+0:26
35K
21.75 mi13:55:062:59:348:155:54
7:53
-0:53
23M
23.00 mi14:05:153:09:438:1510:09
8:06
+0:13
24M
24.00 mi14:13:133:17:418:147:58
7:58
-0:08
40K
24.85 mi14:20:073:24:358:146:54
8:04
+0:06
25.2M
25.20 mi14:23:003:27:288:142:53
8:22
+0:18
Finish
26.22 mi14:30:513:35:198:137:51
7:42
-0:40

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

7:42 /mi

Average Pace

8:13 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:59

84% of race

Time at Steady Pace

35:20

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:20:3925:078:0525:07
8:05
#14598
10K
6.21 mi11:45:4450:128:0525:05
8:04
#14966
15K
9.32 mi12:10:581:15:268:0625:14
8:07
#15075
20K
12.43 mi12:36:461:41:148:0925:48
8:18
#15223
Half
13.11 mi12:42:211:46:498:095:35
8:11
#15237
25K
15.53 mi13:02:332:07:018:1120:12
8:20
#15181
30K
18.64 mi13:29:072:33:358:1426:34
8:33
#15071
20M
20.00 mi13:40:262:44:548:1511:19
8:20
#14866
21M
21.00 mi13:49:122:53:408:168:46
8:46
#14688
35K
21.75 mi13:55:062:59:348:155:54
7:53
#14560
23M
23.00 mi14:05:153:09:438:1510:09
8:06
#14319
24M
24.00 mi14:13:133:17:418:147:58
7:58
#14149
40K
24.85 mi14:20:073:24:358:146:54
8:04
#13985
25.2M
25.20 mi14:23:003:27:288:142:53
8:22
#13887
Finish
26.22 mi14:30:513:35:198:137:51
7:42
#13722
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi145984389438915311(Top 58%)4853(Top 42%)4853(Top 99%)
10K6.21 mi3.10 mi14966-3684630-2414630-24115333(Top 58%)4871(Top 43%)4871(Top 100%)
15K9.32 mi3.11 mi15075-1094709-794709-7915311(Top 58%)4853(Top 42%)4853(Top 99%)
20K12.43 mi3.11 mi15223-1484823-1144823-11415631(Top 59%)5111(Top 45%)5111(Top 105%)
Half13.11 mi0.68 mi15237-144836-134836-1315677(Top 59%)5083(Top 44%)5083(Top 104%)
25K15.53 mi2.42 mi15181+564825+114825+1115145(Top 57%)4932(Top 43%)4932(Top 101%)
30K18.64 mi3.11 mi15071+1104801+244801+2414616(Top 55%)4697(Top 41%)4697(Top 96%)
20M20.00 mi1.36 mi14866+2054681+1204681+12012571(Top 47%)3628(Top 32%)3628(Top 74%)
21M21.00 mi1.00 mi14688+1784600+814600+8112102(Top 45%)3464(Top 30%)3464(Top 71%)
35K21.75 mi0.75 mi14560+1284541+594541+5911374(Top 43%)3081(Top 27%)3081(Top 63%)
23M23.00 mi1.25 mi14319+2414429+1124429+11210553(Top 40%)2802(Top 25%)2802(Top 57%)
24M24.00 mi1.00 mi14149+1704339+904339+9011052(Top 42%)3125(Top 27%)3125(Top 64%)
40K24.85 mi0.85 mi13985+1644262+774262+7710569(Top 40%)2931(Top 26%)2931(Top 60%)
25.2M25.20 mi0.35 mi13887+984214+484214+488796(Top 33%)2199(Top 19%)2199(Top 45%)
Finish26.22 mi1.02 mi13722+1654127+874127+8710040(Top 38%)2727(Top 24%)2727(Top 56%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15311

Females

4853

F18-39

4853

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

15333

Females

4871

F18-39

4871

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15311

Females

4853

F18-39

4853

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

15631

Females

5111

F18-39

5111

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15677

Females

5083

F18-39

5083

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

15145

Females

4932

F18-39

4932

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14616

Females

4697

F18-39

4697

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

12571

Females

3628

F18-39

3628

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12102

Females

3464

F18-39

3464

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11374

Females

3081

F18-39

3081

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

10553

Females

2802

F18-39

2802

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11052

Females

3125

F18-39

3125

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10569

Females

2931

F18-39

2931

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8796

Females

2199

F18-39

2199

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10040

Females

2727

F18-39

2727

Passing Analysis

Category:
Athletes Passed
2266
Passed By
1390
Net Change
+876
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14598
5K → 10K153521-368#14598#14966
10K → 15K143252-109#14966#15075
15K → 20K142290-148#15075#15223
20K → Half2640-14#15223#15237
Half → 25K161105+56#15237#15181
25K → 30K239129+110#15181#15071
30K → 20M2149+205#15071#14866
20M → 21M19113+178#14866#14688
21M → 35K1291+128#14688#14560
35K → 23M2432+241#14560#14319
23M → 24M18010+170#14319#14149
24M → 40K17511+164#14149#13985
40K → 25.2M980+98#13985#13887
25.2M → Finish1727+165#13887#13722
TOTALS22661390+876
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing