Boston Marathon logo
BOSTON MARATHON 2023

Mikaela Barnes

Bib: 12247•F

BC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 23%
Gender (Female)
#0 / 11423
Top 5%
Division (F18-39)
#0 / 4884
Top 10%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:14
Rank: #9446
Start → 5K
23:14 | 7:29/mi
10K· 6.21 mi
45:51
Rank: #9024 (+422)
5K → 10K
22:37 | 7:17/mi
15K· 9.32 mi
1:08:19
Rank: #8687 (+337)
10K → 15K
22:28 | 7:14/mi
20K· 12.43 mi
1:30:58
Rank: #8389 (+298)
15K → 20K
22:39 | 7:17/mi
Half· 13.11 mi
1:35:50
Rank: #8333 (+56)
20K → Half
4:52 | 7:08/mi
25K· 15.53 mi
1:53:18
Rank: #8022 (+311)
Half → 25K
17:28 | 7:12/mi
30K· 18.64 mi
2:15:48
Rank: #7525 (+497)
25K → 30K
22:30 | 7:15/mi
20M
2:25:37
Rank: #7315 (+210)
30K → 20M
9:49 | 7:13/mi
21M
2:32:50
Rank: #7028 (+287)
20M → 21M
7:13 | 7:13/mi
35K· 21.75 mi
2:38:00
Rank: #6930 (+98)
21M → 35K
5:10 | 6:54/mi
23M
2:46:48
Rank: #6707 (+223)
35K → 23M
8:48 | 7:02/mi
24M
2:53:37
Rank: #6546 (+161)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:59:26
Rank: #6357 (+189)
24M → 40K
5:49 | 6:48/mi
25.2M
3:01:54
Rank: #6268 (+89)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
3:08:28
Rank: #6044 (+224)
25.2M → Finish
6:34 | 6:27/mi

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 Half
Distance13.11 mi
Time1:35:50
Pace7:19 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:32:38
Pace7:04 /mi
📊Negative Split: 3.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3323:147:2923:14
7:29
-
10K
6.21 mi11:13:1045:517:2322:37
7:17
-0:12
15K
9.32 mi11:35:381:08:197:2022:28
7:14
-0:03
20K
12.43 mi11:58:171:30:587:1922:39
7:17
+0:03
Half
13.11 mi12:03:091:35:507:194:52
7:08
-0:09
25K
15.53 mi12:20:371:53:187:1817:28
7:12
+0:04
30K
18.64 mi12:43:072:15:487:1722:30
7:15
+0:03
20M
20.00 mi12:52:562:25:377:179:49
7:13
-0:02
21M
21.00 mi13:00:092:32:507:177:13
7:13
0:00
35K
21.75 mi13:05:192:38:007:165:10
6:54
-0:19
23M
23.00 mi13:14:072:46:487:158:48
7:02
+0:08
24M
24.00 mi13:20:562:53:377:146:49
6:49
-0:13
40K
24.85 mi13:26:452:59:267:135:49
6:48
-0:01
25.2M
25.20 mi13:29:133:01:547:132:28
7:09
+0:21
Finish
26.22 mi13:35:473:08:287:126:34
6:27
-0:42

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

6:27 /mi

Average Pace

7:12 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

33:10

18% of race

Time at Steady Pace

2:35:18

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:11 /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 mi10:50:3323:147:2923:14
7:29
#9446
10K
6.21 mi11:13:1045:517:2322:37
7:17
#9024
15K
9.32 mi11:35:381:08:197:2022:28
7:14
#8687
20K
12.43 mi11:58:171:30:587:1922:39
7:17
#8389
Half
13.11 mi12:03:091:35:507:194:52
7:08
#8333
25K
15.53 mi12:20:371:53:187:1817:28
7:12
#8022
30K
18.64 mi12:43:072:15:487:1722:30
7:15
#7525
20M
20.00 mi12:52:562:25:377:179:49
7:13
#7315
21M
21.00 mi13:00:092:32:507:177:13
7:13
#7028
35K
21.75 mi13:05:192:38:007:165:10
6:54
#6930
23M
23.00 mi13:14:072:46:487:158:48
7:02
#6707
24M
24.00 mi13:20:562:53:377:146:49
6:49
#6546
40K
24.85 mi13:26:452:59:267:135:49
6:48
#6357
25.2M
25.20 mi13:29:133:01:547:132:28
7:09
#6268
Finish
26.22 mi13:35:473:08:287:126:34
6:27
#6044
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9446159115918023(Top 30%)1073(Top 9%)1073(Top 22%)
10K6.21 mi3.10 mi9024+4221424+1671424+1678721(Top 33%)1306(Top 11%)1306(Top 27%)
15K9.32 mi3.11 mi8687+3371297+1271297+1278023(Top 30%)1073(Top 9%)1073(Top 22%)
20K12.43 mi3.11 mi8389+2981189+1081189+1087712(Top 29%)999(Top 9%)999(Top 20%)
Half13.11 mi0.68 mi8333+561173+161173+167422(Top 28%)879(Top 8%)879(Top 18%)
25K15.53 mi2.42 mi8022+3111078+951078+956703(Top 25%)762(Top 7%)762(Top 16%)
30K18.64 mi3.11 mi7525+497944+134944+1345734(Top 22%)560(Top 5%)560(Top 11%)
20M20.00 mi1.36 mi7315+210883+61883+615202(Top 20%)504(Top 4%)504(Top 10%)
21M21.00 mi1.00 mi7028+287807+76807+763242(Top 12%)217(Top 2%)217(Top 4%)
35K21.75 mi0.75 mi6930+98788+19788+194863(Top 18%)479(Top 4%)479(Top 10%)
23M23.00 mi1.25 mi6707+223751+37751+373948(Top 15%)316(Top 3%)316(Top 6%)
24M24.00 mi1.00 mi6546+161720+31720+313777(Top 14%)321(Top 3%)321(Top 7%)
40K24.85 mi0.85 mi6357+189683+37683+372889(Top 11%)232(Top 2%)232(Top 5%)
25.2M25.20 mi0.35 mi6268+89668+15668+152413(Top 9%)183(Top 2%)183(Top 4%)
Finish26.22 mi1.02 mi6044+224624+44624+442257(Top 8%)168(Top 1%)168(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8023

Females

1073

F18-39

1073

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8721

Females

1306

F18-39

1306

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8023

Females

1073

F18-39

1073

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7712

Females

999

F18-39

999

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7422

Females

879

F18-39

879

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

6703

Females

762

F18-39

762

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5734

Females

560

F18-39

560

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5202

Females

504

F18-39

504

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3242

Females

217

F18-39

217

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4863

Females

479

F18-39

479

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3948

Females

316

F18-39

316

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3777

Females

321

F18-39

321

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2889

Females

232

F18-39

232

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2413

Females

183

F18-39

183

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2257

Females

168

F18-39

168

Passing Analysis

Category:
Athletes Passed
3585
Passed By
183
Net Change
+3402
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9446
5K → 10K533111+422#9446#9024
10K → 15K36528+337#9024#8687
15K → 20K31921+298#8687#8389
20K → Half593+56#8389#8333
Half → 25K3198+311#8333#8022
25K → 30K5025+497#8022#7525
30K → 20M2111+210#7525#7315
20M → 21M2870+287#7315#7028
21M → 35K991+98#7028#6930
35K → 23M2252+223#6930#6707
23M → 24M1621+161#6707#6546
24M → 40K1912+189#6546#6357
40K → 25.2M890+89#6357#6268
25.2M → Finish2240+224#6268#6044
TOTALS3585183+3402
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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