Boston Marathon logo
BOSTON MARATHON 2023

Meghan Blackstone

VA

Bib: 10662 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 14%
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
7:50/mi
24:21
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:48/mi
48:36
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:26/mi
1:11:43
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:21/mi
1:34:32
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:09/mi
1:39:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:09/mi
1:56:45
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:12/mi
2:19:07
↑ 181↓ 1480.2%
138 ft elev
20M
7:06/mi
2:28:46
↑ 64↓ 500.2%
148 ft elev
21M
7:24/mi
2:36:10
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:57/mi
2:41:22
↑ 17↓ 861.7%
156 ft elev
23M
6:53/mi
2:49:59
↑ 23↓ 630.6%
116 ft elev
24M
6:45/mi
2:56:44
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:36/mi
3:02:23
↓ 200.3%
20 ft elev
25.2M
7:12/mi
3:04:52
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:38/mi
3:11:38
↑ 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 for a free AI report on this race

A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.

Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:25
Pace7:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:13
Pace7:02 /mi
📊Negative Split: 7.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0524:217:5024:21
7:50
-
10K
6.21 mi11:15:2048:367:4924:15
7:48
-0:02
15K
9.32 mi11:38:271:11:437:4223:07
7:26
-0:22
20K
12.43 mi12:01:161:34:327:3622:49
7:21
-0:05
Half
13.11 mi12:06:091:39:257:354:53
7:09
-0:12
25K
15.53 mi12:23:291:56:457:3117:20
7:09
0:00
30K
18.64 mi12:45:512:19:077:2822:22
7:12
+0:03
20M
20.00 mi12:55:302:28:467:269:39
7:06
-0:06
21M
21.00 mi13:02:542:36:107:267:24
7:24
+0:18
35K
21.75 mi13:08:062:41:227:255:12
6:57
-0:27
23M
23.00 mi13:16:432:49:597:238:37
6:53
-0:04
24M
24.00 mi13:23:282:56:447:226:45
6:45
-0:08
40K
24.85 mi13:29:073:02:237:205:39
6:36
-0:09
25.2M
25.20 mi13:31:363:04:527:202:29
7:12
+0:36
Finish
26.22 mi13:38:223:11:387:196:46
6:38
-0:34

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

6:36 /mi

Average Pace

7:19 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:42

47% of race

Time at Steady Pace

53:20

28% of race

Time at Slower Pace

48:36

25% of race

Average Pace: 7:19 /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 mi10:51:0524:217:5024:21
7:50
#12726
10K
6.21 mi11:15:2048:367:4924:15
7:48
#12891
15K
9.32 mi11:38:271:11:437:4223:07
7:26
#11729
20K
12.43 mi12:01:161:34:327:3622:49
7:21
#10766
Half
13.11 mi12:06:091:39:257:354:53
7:09
#10575
25K
15.53 mi12:23:291:56:457:3117:20
7:09
#9781
30K
18.64 mi12:45:512:19:077:2822:22
7:12
#8853
20M
20.00 mi12:55:302:28:467:269:39
7:06
#8467
21M
21.00 mi13:02:542:36:107:267:24
7:24
#8163
35K
21.75 mi13:08:062:41:227:255:12
6:57
#8014
23M
23.00 mi13:16:432:49:597:238:37
6:53
#7622
24M
24.00 mi13:23:282:56:447:226:45
6:45
#7366
40K
24.85 mi13:29:073:02:237:205:39
6:36
#7119
25.2M
25.20 mi13:31:363:04:527:202:29
7:12
#7009
Finish
26.22 mi13:38:223:11:387:196:46
6:38
#6813
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi12726328332839694(Top 36%)1700(Top 15%)1700(Top 35%)
10K6.21 mi3.10 mi12891-1653372-893372-8913159(Top 49%)3514(Top 31%)3514(Top 72%)
15K9.32 mi3.11 mi11729+11622744+6282744+6289694(Top 36%)1700(Top 15%)1700(Top 35%)
20K12.43 mi3.11 mi10766+9632225+5192225+5198114(Top 30%)1140(Top 10%)1140(Top 23%)
Half13.11 mi0.68 mi10575+1912104+1212104+1217610(Top 29%)953(Top 8%)953(Top 20%)
25K15.53 mi2.42 mi9781+7941755+3491755+3496396(Top 24%)671(Top 6%)671(Top 14%)
30K18.64 mi3.11 mi8853+9281425+3301425+3305508(Top 21%)507(Top 4%)507(Top 10%)
20M20.00 mi1.36 mi8467+3861309+1161309+1164657(Top 17%)391(Top 3%)391(Top 8%)
21M21.00 mi1.00 mi8163+3041216+931216+934152(Top 16%)344(Top 3%)344(Top 7%)
35K21.75 mi0.75 mi8014+1491168+481168+485110(Top 19%)536(Top 5%)536(Top 11%)
23M23.00 mi1.25 mi7622+3921040+1281040+1283152(Top 12%)221(Top 2%)221(Top 5%)
24M24.00 mi1.00 mi7366+256978+62978+623420(Top 13%)270(Top 2%)270(Top 6%)
40K24.85 mi0.85 mi7119+247912+66912+661986(Top 7%)130(Top 1%)130(Top 3%)
25.2M25.20 mi0.35 mi7009+110892+20892+202616(Top 10%)208(Top 2%)208(Top 4%)
Finish26.22 mi1.02 mi6813+196842+50842+503232(Top 12%)326(Top 3%)326(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9694

Females

1700

F18-39

1700

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13159

Females

3514

F18-39

3514

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9694

Females

1700

F18-39

1700

15K→20K

9.3 - 12.4 mi

Top 30%
×5story building
+106ft-86ft

Overall

8114

Females

1140

F18-39

1140

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7610

Females

953

F18-39

953

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6396

Females

671

F18-39

671

25K→30K

15.5 - 18.6 mi

Top 21%
×9story building
+181ft-148ft

Overall

5508

Females

507

F18-39

507

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4657

Females

391

F18-39

391

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4152

Females

344

F18-39

344

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

5110

Females

536

F18-39

536

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3152

Females

221

F18-39

221

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3420

Females

270

F18-39

270

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1986

Females

130

F18-39

130

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2616

Females

208

F18-39

208

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3232

Females

326

F18-39

326

Passing Analysis

Category:
Athletes Passed
6322*
Passed By
409
Net Change
+5913
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12726
5K → 10K230395-165#12726#12891
10K → 15K11675+1162#12891#11729
15K → 20K9652+963#11729#10766
20K → Half1921+191#10766#10575
Half → 25K794*0+794#10575#9781
25K → 30K928*0+928#9781#8853
30K → 20M3860+386#8853#8467
20M → 21M3040+304#8467#8163
21M → 35K1501+149#8163#8014
35K → 23M3920+392#8014#7622
23M → 24M2571+256#7622#7366
24M → 40K2470+247#7366#7119
40K → 25.2M1100+110#7119#7009
25.2M → Finish2004+196#7009#6813
TOTALS6322*409+5913

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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