Boston Marathon logo
BOSTON MARATHON 2023

Colby Bolesta

Bib: 14028•F

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 47%
Gender (Female)
#0 / 11423
Top 31%
Masters (Masters Women)
#0 / 6539
Top 17%
Division (F45-49)
#0 / 1817
Top 18%
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
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:11:29
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:35:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:40:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:00:13
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:26:09
↑ 181↓ 1480.2%
20M
8:35/mi
2:37:49
↑ 64↓ 500.2%
21M
9:09/mi
2:46:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:53:03
↑ 17↓ 861.7%
23M
8:37/mi
3:03:50
↑ 23↓ 630.6%
24M
8:26/mi
3:12:16
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:19:24
↓ 200.3%
25.2M
9:17/mi
3:22:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:38/mi
3:31:24
↑ 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
Time1:40:52
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:50:32
Pace8:26 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0323:597:4323:59
7:43
-
10K
6.21 mi11:16:4847:447:4123:45
7:39
-0:04
15K
9.32 mi11:40:331:11:297:4023:45
7:39
0:00
20K
12.43 mi12:04:441:35:407:4224:11
7:47
+0:08
Half
13.11 mi12:09:561:40:527:425:12
7:37
-0:10
25K
15.53 mi12:29:172:00:137:4419:21
7:59
+0:22
30K
18.64 mi12:55:132:26:097:5025:56
8:21
+0:22
20M
20.00 mi13:06:532:37:497:5311:40
8:35
+0:14
21M
21.00 mi13:16:022:46:587:579:09
9:09
+0:34
35K
21.75 mi13:22:072:53:037:576:05
8:08
-1:01
23M
23.00 mi13:32:543:03:508:0010:47
8:37
+0:29
24M
24.00 mi13:41:203:12:168:018:26
8:26
-0:11
40K
24.85 mi13:48:283:19:248:017:08
8:21
-0:05
25.2M
25.20 mi13:51:403:22:368:023:12
9:17
+0:56
Finish
26.22 mi14:00:283:31:248:048:48
8:38
-0:39

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

7:37 /mi

Average Pace

8:04 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:13

57% of race

Time at Steady Pace

59:15

28% of race

Time at Slower Pace

31:56

15% of race

Average Pace: 8:04 /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 mi10:53:0323:597:4323:59
7:43
#11645
10K
6.21 mi11:16:4847:447:4123:45
7:39
#11645
15K
9.32 mi11:40:331:11:297:4023:45
7:39
#11532
20K
12.43 mi12:04:441:35:407:4224:11
7:47
#11520
Half
13.11 mi12:09:561:40:527:425:12
7:37
#11492
25K
15.53 mi12:29:172:00:137:4419:21
7:59
#11613
30K
18.64 mi12:55:132:26:097:5025:56
8:21
#11951
20M
20.00 mi13:06:532:37:497:5311:40
8:35
#12141
21M
21.00 mi13:16:022:46:587:579:09
9:09
#12265
35K
21.75 mi13:22:072:53:037:576:05
8:08
#12289
23M
23.00 mi13:32:543:03:508:0010:47
8:37
#12397
24M
24.00 mi13:41:203:12:168:018:26
8:26
#12454
40K
24.85 mi13:48:283:19:248:017:08
8:21
#12472
25.2M
25.20 mi13:51:403:22:368:023:12
9:17
#12492
Finish
26.22 mi14:00:283:31:248:048:48
8:38
#12645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi116452669266911390(Top 43%)2566(Top 22%)2566(Top 141%)
10K6.21 mi3.10 mi116452676-72676-711761(Top 44%)2737(Top 24%)2737(Top 151%)
15K9.32 mi3.11 mi11532+1132623+532623+5311390(Top 43%)2566(Top 22%)2566(Top 141%)
20K12.43 mi3.11 mi11520+122634-112634-1111626(Top 44%)2756(Top 24%)2756(Top 152%)
Half13.11 mi0.68 mi11492+282620+142620+1411307(Top 42%)2538(Top 22%)2538(Top 140%)
25K15.53 mi2.42 mi11613-1212707-872707-8712601(Top 47%)3418(Top 30%)3418(Top 188%)
30K18.64 mi3.11 mi11951-3382953-2462953-24613327(Top 50%)3932(Top 34%)3932(Top 216%)
20M20.00 mi1.36 mi12141-1903078-1253078-12514162(Top 53%)4504(Top 39%)4504(Top 248%)
21M21.00 mi1.00 mi12265-1243159-813159-8114211(Top 53%)4588(Top 40%)4588(Top 253%)
35K21.75 mi0.75 mi12289-243189-303189-3013017(Top 49%)4003(Top 35%)4003(Top 220%)
23M23.00 mi1.25 mi12397-1083276-873276-8713873(Top 52%)4536(Top 40%)4536(Top 250%)
24M24.00 mi1.00 mi12454-573325-493325-4914084(Top 53%)4711(Top 41%)4711(Top 259%)
40K24.85 mi0.85 mi12472-183357-323357-3212359(Top 46%)3859(Top 34%)3859(Top 212%)
25.2M25.20 mi0.35 mi12492-203380-233380-2314109(Top 53%)4793(Top 42%)4793(Top 264%)
Finish26.22 mi1.02 mi12645-1533489-1093489-10916171(Top 61%)5913(Top 52%)5913(Top 325%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11390

Females

2566

F45-49

2566

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11761

Females

2737

F45-49

2737

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11390

Females

2566

F45-49

2566

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

11626

Females

2756

F45-49

2756

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11307

Females

2538

F45-49

2538

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12601

Females

3418

F45-49

3418

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13327

Females

3932

F45-49

3932

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

14162

Females

4504

F45-49

4504

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14211

Females

4588

F45-49

4588

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13017

Females

4003

F45-49

4003

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13873

Females

4536

F45-49

4536

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

14084

Females

4711

F45-49

4711

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

12359

Females

3859

F45-49

3859

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14109

Females

4793

F45-49

4793

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16171

Females

5913

F45-49

5913

Passing Analysis

Category:
Athletes Passed
1294
Passed By
2294
Net Change
-1000
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11645
5K → 10K2902900#11645#11645
10K → 15K249136+113#11645#11532
15K → 20K161149+12#11532#11520
20K → Half4820+28#11520#11492
Half → 25K93214-121#11492#11613
25K → 30K91429-338#11613#11951
30K → 20M61251-190#11951#12141
20M → 21M54178-124#12141#12265
21M → 35K3559-24#12265#12289
35K → 23M59167-108#12289#12397
23M → 24M49106-57#12397#12454
24M → 40K5169-18#12454#12472
40K → 25.2M2646-20#12472#12492
25.2M → Finish27180-153#12492#12645
TOTALS12942294-1000
📊

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