Boston Marathon logo
BOSTON MARATHON 2025

Kelsi Connors

Bib: 12983•F

CO

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Female)
#0 / 12228
Top 9%
Division (F18-39)
#0 / 5469
Top 16%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:43
Rank: #10487
Start → 5K
22:43 | 7:19/mi
10K· 6.21 mi
44:47
Rank: #9516 (+971)
5K → 10K
22:04 | 7:06/mi
15K· 9.32 mi
1:06:21
Rank: #8651 (+865)
10K → 15K
21:34 | 6:56/mi
20K· 12.43 mi
1:28:00
Rank: #8045 (+606)
15K → 20K
21:39 | 6:58/mi
Half· 13.11 mi
1:32:38
Rank: #7925 (+120)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:49:34
Rank: #7607 (+318)
Half → 25K
16:56 | 6:59/mi
30K· 18.64 mi
2:12:06
Rank: #7259 (+348)
25K → 30K
22:32 | 7:15/mi
20M
2:22:40
Rank: #7286 (-27)
30K → 20M
10:34 | 7:47/mi
21M
2:30:44
Rank: #7252 (+34)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:36:28
Rank: #7278 (-26)
21M → 35K
5:44 | 7:40/mi
23M
2:46:03
Rank: #7236 (+42)
35K → 23M
9:36 | 7:40/mi
24M
2:53:43
Rank: #7260 (-24)
23M → 24M
7:40 | 7:40/mi
40K· 24.85 mi
3:00:14
Rank: #7232 (+28)
24M → 40K
6:31 | 7:37/mi
25.2M
3:03:05
Rank: #7222 (+10)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:10:38
Rank: #7238 (-16)
25.2M → Finish
7:33 | 7:25/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 HalfFaster
Distance13.11 mi
Time1:32:38
Pace7:04 /mi
2nd Half
Distance13.11 mi
Time1:38:00
Pace7:29 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3522:437:1922:43
7:19
-
10K
6.21 mi11:13:3944:477:1222:04
7:06
-0:13
15K
9.32 mi11:35:131:06:217:0721:34
6:56
-0:10
20K
12.43 mi11:56:521:28:007:0521:39
6:58
+0:02
Half
13.11 mi12:01:301:32:387:044:38
6:47
-0:11
25K
15.53 mi12:18:261:49:347:0316:56
6:59
+0:12
30K
18.64 mi12:40:582:12:067:0522:32
7:15
+0:16
20M
20.00 mi12:51:322:22:407:0810:34
7:47
+0:32
21M
21.00 mi12:59:362:30:447:118:04
8:04
+0:17
35K
21.75 mi13:05:202:36:287:125:44
7:40
-0:24
23M
23.00 mi13:14:552:46:037:139:36
7:40
0:00
24M
24.00 mi13:22:352:53:437:147:40
7:40
0:00
40K
24.85 mi13:29:063:00:147:156:31
7:37
-0:03
25.2M
25.20 mi13:31:573:03:057:162:51
8:16
+0:39
Finish
26.22 mi13:39:303:10:387:177:33
7:25
-0:51

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

6:47 /mi

Average Pace

7:17 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:51

46% of race

Time at Steady Pace

59:19

31% of race

Time at Slower Pace

44:28

23% of race

Average Pace: 7:16 /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 mi10:51:3522:437:1922:43
7:19
#10487
10K
6.21 mi11:13:3944:477:1222:04
7:06
#9516
15K
9.32 mi11:35:131:06:217:0721:34
6:56
#8651
20K
12.43 mi11:56:521:28:007:0521:39
6:58
#8045
Half
13.11 mi12:01:301:32:387:044:38
6:47
#7925
25K
15.53 mi12:18:261:49:347:0316:56
6:59
#7607
30K
18.64 mi12:40:582:12:067:0522:32
7:15
#7259
20M
20.00 mi12:51:322:22:407:0810:34
7:47
#7286
21M
21.00 mi12:59:362:30:447:118:04
8:04
#7252
35K
21.75 mi13:05:202:36:287:125:44
7:40
#7278
23M
23.00 mi13:14:552:46:037:139:36
7:40
#7236
24M
24.00 mi13:22:352:53:437:147:40
7:40
#7260
40K
24.85 mi13:29:063:00:147:156:31
7:37
#7232
25.2M
25.20 mi13:31:573:03:057:162:51
8:16
#7222
Finish
26.22 mi13:39:303:10:387:177:33
7:25
#7238
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 mi10487202420247259(Top 26%)798(Top 7%)798(Top 15%)
10K6.21 mi3.10 mi9516+9711583+4411583+4418707(Top 31%)1264(Top 10%)1264(Top 23%)
15K9.32 mi3.11 mi8651+8651253+3301253+3307259(Top 26%)798(Top 7%)798(Top 15%)
20K12.43 mi3.11 mi8045+6061040+2131040+2136700(Top 24%)708(Top 6%)708(Top 13%)
Half13.11 mi0.68 mi7925+1201001+391001+396178(Top 22%)591(Top 5%)591(Top 11%)
25K15.53 mi2.42 mi7607+318911+90911+906253(Top 22%)660(Top 5%)660(Top 12%)
30K18.64 mi3.11 mi7259+348851+60851+606203(Top 22%)733(Top 6%)733(Top 13%)
20M20.00 mi1.36 mi7286-27889-38889-388874(Top 31%)1913(Top 16%)1913(Top 35%)
21M21.00 mi1.00 mi7252+34908-19908-197760(Top 27%)1606(Top 13%)1606(Top 29%)
35K21.75 mi0.75 mi7278-26939-31939-319719(Top 34%)2493(Top 20%)2493(Top 46%)
23M23.00 mi1.25 mi7236+42970-31970-317646(Top 27%)1680(Top 14%)1680(Top 31%)
24M24.00 mi1.00 mi7260-241007-371007-378838(Top 31%)2264(Top 19%)2264(Top 41%)
40K24.85 mi0.85 mi7232+281023-161023-167577(Top 27%)1782(Top 15%)1782(Top 33%)
25.2M25.20 mi0.35 mi7222+101033-101033-107486(Top 26%)1826(Top 15%)1826(Top 33%)
Finish26.22 mi1.02 mi7238-161064-311064-318561(Top 30%)2308(Top 19%)2308(Top 42%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21stories
+97ft-345ft

Overall

7259

Females

798

F18-39

798

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8707

Females

1264

F18-39

1264

10K→15K

6.2 - 9.3 mi

Top 26%
×3stories
+67ft-78ft

Overall

7259

Females

798

F18-39

798

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6700

Females

708

F18-39

708

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

6178

Females

591

F18-39

591

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6253

Females

660

F18-39

660

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6203

Females

733

F18-39

733

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8874

Females

1913

F18-39

1913

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7760

Females

1606

F18-39

1606

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9719

Females

2493

F18-39

2493

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7646

Females

1680

F18-39

1680

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8838

Females

2264

F18-39

2264

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7577

Females

1782

F18-39

1782

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7486

Females

1826

F18-39

1826

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8561

Females

2308

F18-39

2308

Passing Analysis

Category:
Athletes Passed
3872*
Passed By
623
Net Change
+3249
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10487
5K → 10K1001*30+971#10487#9516
10K → 15K8694+865#9516#8651
15K → 20K6104+606#8651#8045
20K → Half1211+120#8045#7925
Half → 25K3224+318#7925#7607
25K → 30K38335+348#7607#7259
30K → 20M87114-27#7259#7286
20M → 21M9864+34#7286#7252
21M → 35K4369-26#7252#7278
35K → 23M11270+42#7278#7236
23M → 24M7094-24#7236#7260
24M → 40K7345+28#7260#7232
40K → 25.2M3222+10#7232#7222
25.2M → Finish5167-16#7222#7238
TOTALS3872*623+3249

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

📊

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