Boston Marathon logo
BOSTON MARATHON 2023

Mary Ann Roberts

DC

Bib: 24211 F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F70-74)
#0 / 62
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:50/mi
27:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:58/mi
55:16
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:12/mi
1:23:52
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:08/mi
1:52:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:55/mi
1:58:21
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:25/mi
2:21:10
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:38/mi
2:51:06
↑ 181↓ 1480.2%
138 ft elev
20M
9:49/mi
3:04:26
↑ 64↓ 500.2%
148 ft elev
21M
10:34/mi
3:15:00
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:15/mi
3:21:55
↑ 17↓ 861.7%
156 ft elev
23M
10:05/mi
3:34:33
↑ 23↓ 630.6%
116 ft elev
24M
9:31/mi
3:44:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:02/mi
3:52:39
↓ 200.3%
20 ft elev
25.2M
12:05/mi
3:56:49
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:12/mi
4:07:13
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

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
Time1:58:21
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:08:52
Pace9:50 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:3827:268:5027:26
8:50
-
10K
6.21 mi12:10:2855:168:5427:50
8:58
+0:08
15K
9.32 mi12:39:041:23:529:0028:36
9:12
+0:14
20K
12.43 mi13:07:281:52:169:0228:24
9:08
-0:04
Half
13.11 mi13:13:331:58:219:026:05
8:55
-0:13
25K
15.53 mi13:36:222:21:109:0522:49
9:25
+0:30
30K
18.64 mi14:06:182:51:069:1129:56
9:38
+0:13
20M
20.00 mi14:19:383:04:269:1313:20
9:49
+0:11
21M
21.00 mi14:30:123:15:009:1710:34
10:34
+0:45
35K
21.75 mi14:37:073:21:559:176:55
9:15
-1:19
23M
23.00 mi14:49:453:34:339:2012:38
10:05
+0:50
24M
24.00 mi14:59:163:44:049:209:31
9:31
-0:34
40K
24.85 mi15:07:513:52:399:228:35
10:02
+0:31
25.2M
25.20 mi15:12:013:56:499:244:10
12:05
+2:03
Finish
26.22 mi15:22:254:07:139:2610:24
10:12
-1:53

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

8:50 /mi

Average Pace

9:26 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:21

25% of race

Time at Steady Pace

2:19:31

56% of race

Time at Slower Pace

46:21

19% of race

Average Pace: 9:26 /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 mi11:42:3827:268:5027:26
8:50
#19636
10K
6.21 mi12:10:2855:168:5427:50
8:58
#20171
15K
9.32 mi12:39:041:23:529:0028:36
9:12
#20564
20K
12.43 mi13:07:281:52:169:0228:24
9:08
#20510
Half
13.11 mi13:13:331:58:219:026:05
8:55
#20482
25K
15.53 mi13:36:222:21:109:0522:49
9:25
#20504
30K
18.64 mi14:06:182:51:069:1129:56
9:38
#20376
20M
20.00 mi14:19:383:04:269:1313:20
9:49
#20333
21M
21.00 mi14:30:123:15:009:1710:34
10:34
#20284
35K
21.75 mi14:37:073:21:559:176:55
9:15
#20237
23M
23.00 mi14:49:453:34:339:2012:38
10:05
#20231
24M
24.00 mi14:59:163:44:049:209:31
9:31
#20190
40K
24.85 mi15:07:513:52:399:228:35
10:02
#20184
25.2M
25.20 mi15:12:013:56:499:244:10
12:05
#20228
Finish
26.22 mi15:22:254:07:139:2610:24
10:12
#20293
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF70-74Seg. OverallSeg. FemalesSeg. F70-74
5K3.11 mi3.11 mi196367600760021329(Top 80%)8413(Top 74%)8413(Top 13569%)
10K6.21 mi3.10 mi20171-5357859-2597859-25920717(Top 78%)8101(Top 71%)8101(Top 13066%)
15K9.32 mi3.11 mi20564-3938056-1978056-19721329(Top 80%)8413(Top 74%)8413(Top 13569%)
20K12.43 mi3.11 mi20510+548003+538003+5320335(Top 76%)7863(Top 69%)7863(Top 12682%)
Half13.11 mi0.68 mi20482+287987+167987+1620105(Top 76%)7732(Top 68%)7732(Top 12471%)
25K15.53 mi2.42 mi20504-227985+27985+220553(Top 77%)8018(Top 70%)8018(Top 12932%)
30K18.64 mi3.11 mi20376+1287940+457940+4519927(Top 75%)7725(Top 68%)7725(Top 12460%)
20M20.00 mi1.36 mi20333+437932+87932+819906(Top 75%)7801(Top 68%)7801(Top 12582%)
21M21.00 mi1.00 mi20284+497914+187914+1819809(Top 74%)7823(Top 68%)7823(Top 12618%)
35K21.75 mi0.75 mi20237+477897+177897+1718963(Top 71%)7376(Top 65%)7376(Top 11897%)
23M23.00 mi1.25 mi20231+67899-27899-220251(Top 76%)8107(Top 71%)8107(Top 13076%)
24M24.00 mi1.00 mi20190+417888+117888+1119288(Top 72%)7613(Top 67%)7613(Top 12279%)
40K24.85 mi0.85 mi20184+67892-47892-420090(Top 75%)8108(Top 71%)8108(Top 13077%)
25.2M25.20 mi0.35 mi20228-447922-307922-3022654(Top 85%)9472(Top 83%)9472(Top 15277%)
Finish26.22 mi1.02 mi20293-657967-457967-4522320(Top 84%)9285(Top 81%)9285(Top 14976%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

21329

Females

8413

F70-74

8413

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

20717

Females

8101

F70-74

8101

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

21329

Females

8413

F70-74

8413

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

20335

Females

7863

F70-74

7863

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

20105

Females

7732

F70-74

7732

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

20553

Females

8018

F70-74

8018

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19927

Females

7725

F70-74

7725

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

19906

Females

7801

F70-74

7801

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19809

Females

7823

F70-74

7823

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

18963

Females

7376

F70-74

7376

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

20251

Females

8107

F70-74

8107

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19288

Females

7613

F70-74

7613

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20090

Females

8108

F70-74

8108

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22654

Females

9472

F70-74

9472

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22320

Females

9285

F70-74

9285

Passing Analysis

Category:
Athletes Passed
1186
Passed By
1843
Net Change
-657
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19636
5K → 10K113648-535#19636#20171
10K → 15K68461-393#20171#20564
15K → 20K184130+54#20564#20510
20K → Half4315+28#20510#20482
Half → 25K97119-22#20482#20504
25K → 30K21587+128#20504#20376
30K → 20M9552+43#20376#20333
20M → 21M9445+49#20333#20284
21M → 35K6013+47#20284#20237
35K → 23M7872+6#20237#20231
23M → 24M7130+41#20231#20190
24M → 40K4236+6#20190#20184
40K → 25.2M448-44#20184#20228
25.2M → Finish2287-65#20228#20293
TOTALS11861843-657
📊

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