Boston Marathon logo
BOSTON MARATHON 2023

Emilie Sineau

Bib: 14347•F

AZ

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 50%
Masters (Masters Women)
#0 / 6539
Top 39%
Division (F40-44)
#0 / 1878
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
7:47/mi
24:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
48:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:44
↑ 67↓ 78
20K· 12.43 mi
8:12/mi
1:38:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:07/mi
1:43:46
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:04:34
↑ 66↓ 880.2%
30K· 18.64 mi
9:09/mi
2:33:01
↑ 181↓ 1480.2%
20M
9:25/mi
2:45:49
↑ 64↓ 500.2%
21M
10:55/mi
2:56:44
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:03:42
↑ 17↓ 861.7%
23M
9:29/mi
3:15:35
↑ 23↓ 630.6%
24M
10:23/mi
3:25:58
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:33:32
↓ 200.3%
25.2M
9:37/mi
3:36:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:37/mi
3:45:38
↑ 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
Time1:43:46
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time2:01:52
Pace9:18 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3424:117:4724:11
7:47
-
10K
6.21 mi11:18:0048:377:4924:26
7:52
+0:05
15K
9.32 mi11:42:071:12:447:4824:07
7:46
-0:06
20K
12.43 mi12:07:371:38:147:5425:30
8:12
+0:26
Half
13.11 mi12:13:091:43:467:555:32
8:07
-0:05
25K
15.53 mi12:33:572:04:348:0120:48
8:35
+0:28
30K
18.64 mi13:02:242:33:018:1328:27
9:09
+0:34
20M
20.00 mi13:15:122:45:498:1712:48
9:25
+0:16
21M
21.00 mi13:26:072:56:448:2510:55
10:55
+1:30
35K
21.75 mi13:33:053:03:428:276:58
9:19
-1:36
23M
23.00 mi13:44:583:15:358:3011:53
9:29
+0:10
24M
24.00 mi13:55:213:25:588:3510:23
10:23
+0:54
40K
24.85 mi14:02:553:33:328:357:34
8:51
-1:32
25.2M
25.20 mi14:06:143:36:518:363:19
9:37
+0:46
Finish
26.22 mi14:15:013:45:388:378:47
8:37
-1:00

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

7:46 /mi

Average Pace

8:37 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:46

46% of race

Time at Steady Pace

1:05:36

29% of race

Time at Slower Pace

56:16

25% of race

Average Pace: 8:36 /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 mi10:53:3424:117:4724:11
7:47
#12232
10K
6.21 mi11:18:0048:377:4924:26
7:52
#12934
15K
9.32 mi11:42:071:12:447:4824:07
7:46
#12723
20K
12.43 mi12:07:371:38:147:5425:30
8:12
#13366
Half
13.11 mi12:13:091:43:467:555:32
8:07
#13446
25K
15.53 mi12:33:572:04:348:0120:48
8:35
#14012
30K
18.64 mi13:02:242:33:018:1328:27
9:09
#14880
20M
20.00 mi13:15:122:45:498:1712:48
9:25
#15174
21M
21.00 mi13:26:072:56:448:2510:55
10:55
#15637
35K
21.75 mi13:33:053:03:428:276:58
9:19
#15786
23M
23.00 mi13:44:583:15:358:3011:53
9:29
#15979
24M
24.00 mi13:55:213:25:588:3510:23
10:23
#16389
40K
24.85 mi14:02:553:33:328:357:34
8:51
#16325
25.2M
25.20 mi14:06:143:36:518:363:19
9:37
#16316
Finish
26.22 mi14:15:013:45:388:378:47
8:37
#16299
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi122323000300012423(Top 47%)3150(Top 28%)3150(Top 168%)
10K6.21 mi3.10 mi12934-7023409-4093409-40913704(Top 51%)3864(Top 34%)3864(Top 206%)
15K9.32 mi3.11 mi12723+2113298+1113298+11112423(Top 47%)3150(Top 28%)3150(Top 168%)
20K12.43 mi3.11 mi13366-6433703-4053703-40515030(Top 56%)4739(Top 41%)4739(Top 252%)
Half13.11 mi0.68 mi13446-803751-483751-4815277(Top 57%)4862(Top 43%)4862(Top 259%)
25K15.53 mi2.42 mi14012-5664117-3664117-36616700(Top 63%)5834(Top 51%)5834(Top 311%)
30K18.64 mi3.11 mi14880-8684667-5504667-55017965(Top 67%)6625(Top 58%)6625(Top 353%)
20M20.00 mi1.36 mi15174-2944890-2234890-22318543(Top 70%)7045(Top 62%)7045(Top 375%)
21M21.00 mi1.00 mi15637-4635203-3135203-31320641(Top 78%)8259(Top 72%)8259(Top 440%)
35K21.75 mi0.75 mi15786-1495306-1035306-10319215(Top 72%)7498(Top 66%)7498(Top 399%)
23M23.00 mi1.25 mi15979-1935448-1425448-14218309(Top 69%)7015(Top 61%)7015(Top 374%)
24M24.00 mi1.00 mi16389-4105683-2355683-23521751(Top 82%)8972(Top 79%)8972(Top 478%)
40K24.85 mi0.85 mi16325+645669+145669+1415387(Top 58%)5519(Top 48%)5519(Top 294%)
25.2M25.20 mi0.35 mi16316+95669566915789(Top 59%)5745(Top 50%)5745(Top 306%)
Finish26.22 mi1.02 mi16299+175659+105659+1016105(Top 60%)5877(Top 51%)5877(Top 313%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12423

Females

3150

F40-44

3150

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13704

Females

3864

F40-44

3864

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12423

Females

3150

F40-44

3150

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15030

Females

4739

F40-44

4739

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

15277

Females

4862

F40-44

4862

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

16700

Females

5834

F40-44

5834

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17965

Females

6625

F40-44

6625

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18543

Females

7045

F40-44

7045

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20641

Females

8259

F40-44

8259

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

19215

Females

7498

F40-44

7498

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18309

Females

7015

F40-44

7015

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21751

Females

8972

F40-44

8972

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15387

Females

5519

F40-44

5519

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15789

Females

5745

F40-44

5745

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

16105

Females

5877

F40-44

5877

Passing Analysis

Category:
Athletes Passed
881
Passed By
4948
Net Change
-4067
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12232
5K → 10K97799-702#12232#12934
10K → 15K325114+211#12934#12723
15K → 20K54697-643#12723#13366
20K → Half1393-80#13366#13446
Half → 25K33599-566#13446#14012
25K → 30K40908-868#14012#14880
30K → 20M30324-294#14880#15174
20M → 21M14477-463#15174#15637
21M → 35K17166-149#15637#15786
35K → 23M35228-193#15786#15979
23M → 24M14424-410#15979#16389
24M → 40K10339+64#16389#16325
40K → 25.2M3829+9#16325#16316
25.2M → Finish6851+17#16316#16299
TOTALS8814948-4067
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing