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BOSTON MARATHON 2024

Xenia Semjanova

Bib: 23551•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F60-64)
#0 / 549
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
9:26/mi
29:18
↑ 97↓ 3451.5%
10K· 6.21 mi
9:34/mi
59:02
↑ 79↓ 1380.4%
15K· 9.32 mi
9:38/mi
1:28:58
↑ 67↓ 78
20K· 12.43 mi
9:59/mi
2:00:00
↑ 106↓ 860.1%
Half· 13.11 mi
9:58/mi
2:06:48
↑ 19↓ 370.5%
25K· 15.53 mi
10:26/mi
2:32:06
↑ 66↓ 880.2%
30K· 18.64 mi
11:16/mi
3:07:07
↑ 181↓ 1480.2%
20M
11:41/mi
3:22:59
↑ 64↓ 500.2%
21M
12:45/mi
3:35:44
↑ 106↓ 241.6%
35K· 21.75 mi
11:23/mi
3:44:15
↑ 17↓ 861.7%
23M
11:50/mi
3:59:04
↑ 23↓ 630.6%
24M
11:44/mi
4:10:48
↓ 821.3%
40K· 24.85 mi
11:48/mi
4:20:53
↓ 200.3%
25.2M
13:55/mi
4:25:41
↑ 13↓ 160.2%
Finish· 26.22 mi
11:01/mi
4:36:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:48
Pace9:40 /mi
2nd Half
Distance13.11 mi
Time2:30:07
Pace11:27 /mi
📊Positive Split: 18.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2229:189:2629:18
9:26
-
10K
6.21 mi11:59:0659:029:3029:44
9:34
+0:08
15K
9.32 mi12:29:021:28:589:3329:56
9:38
+0:04
20K
12.43 mi13:00:042:00:009:3931:02
9:59
+0:21
Half
13.11 mi13:06:522:06:489:406:48
9:58
-0:01
25K
15.53 mi13:32:102:32:069:4725:18
10:26
+0:28
30K
18.64 mi14:07:113:07:0710:0235:01
11:16
+0:50
20M
20.00 mi14:23:033:22:5910:0915:52
11:41
+0:25
21M
21.00 mi14:35:483:35:4410:1612:45
12:45
+1:04
35K
21.75 mi14:44:193:44:1510:198:31
11:23
-1:22
23M
23.00 mi14:59:083:59:0410:2414:49
11:50
+0:27
24M
24.00 mi15:10:524:10:4810:2711:44
11:44
-0:06
40K
24.85 mi15:20:574:20:5310:3010:05
11:48
+0:04
25.2M
25.20 mi15:25:454:25:4110:334:48
13:55
+2:07
Finish
26.22 mi15:36:594:36:5510:3411:14
11:01
-2:54

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

9:26 /mi

Average Pace

10:34 /mi

Slowest Pace

13:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32:06

55% of race

Time at Steady Pace

1:47:16

39% of race

Time at Slower Pace

17:33

6% of race

Average Pace: 10:34 /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 mi11:29:2229:189:2629:18
9:26
#21536
10K
6.21 mi11:59:0659:029:3029:44
9:34
#21540
15K
9.32 mi12:29:021:28:589:3329:56
9:38
#21361
20K
12.43 mi13:00:042:00:009:3931:02
9:59
#21098
Half
13.11 mi13:06:522:06:489:406:48
9:58
#21118
25K
15.53 mi13:32:102:32:069:4725:18
10:26
#20926
30K
18.64 mi14:07:113:07:0710:0235:01
11:16
#20854
20M
20.00 mi14:23:033:22:5910:0915:52
11:41
#20853
21M
21.00 mi14:35:483:35:4410:1612:45
12:45
#20832
35K
21.75 mi14:44:193:44:1510:198:31
11:23
#20805
23M
23.00 mi14:59:083:59:0410:2414:49
11:50
#20782
24M
24.00 mi15:10:524:10:4810:2711:44
11:44
#20775
40K
24.85 mi15:20:574:20:5310:3010:05
11:48
#20755
25.2M
25.20 mi15:25:454:25:4110:334:48
13:55
#20749
Finish
26.22 mi15:36:594:36:5510:3411:14
11:01
#20764
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi215368686868621056(Top 82%)8348(Top 76%)8348(Top 1521%)
10K6.21 mi3.10 mi21540-48671+158671+1521566(Top 84%)8685(Top 80%)8685(Top 1582%)
15K9.32 mi3.11 mi21361+1798565+1068565+10621056(Top 82%)8348(Top 76%)8348(Top 1521%)
20K12.43 mi3.11 mi21098+2638406+1598406+15920556(Top 80%)8120(Top 74%)8120(Top 1479%)
Half13.11 mi0.68 mi21118-208418-128418-1221407(Top 84%)8624(Top 79%)8624(Top 1571%)
25K15.53 mi2.42 mi20926+1928341+778341+7720265(Top 79%)8069(Top 74%)8069(Top 1470%)
30K18.64 mi3.11 mi20854+728355-148355-1420566(Top 80%)8407(Top 77%)8407(Top 1531%)
20M20.00 mi1.36 mi20853+18379-248379-2420769(Top 81%)8628(Top 79%)8628(Top 1572%)
21M21.00 mi1.00 mi20832+218393-148393-1420332(Top 80%)8497(Top 78%)8497(Top 1548%)
35K21.75 mi0.75 mi20805+278402-98402-920623(Top 81%)8647(Top 79%)8647(Top 1575%)
23M23.00 mi1.25 mi20782+238422-208422-2020378(Top 80%)8589(Top 79%)8589(Top 1564%)
24M24.00 mi1.00 mi20775+78433-118433-1120883(Top 82%)8874(Top 81%)8874(Top 1616%)
40K24.85 mi0.85 mi20755+208437-48437-420040(Top 78%)8543(Top 78%)8543(Top 1556%)
25.2M25.20 mi0.35 mi20749+68439-28439-221487(Top 84%)9223(Top 84%)9223(Top 1680%)
Finish26.22 mi1.02 mi20764-158463-248463-2421403(Top 84%)9160(Top 84%)9160(Top 1668%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21056

Females

8348

F60-64

8348

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

21566

Females

8685

F60-64

8685

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21056

Females

8348

F60-64

8348

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

20556

Females

8120

F60-64

8120

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

21407

Females

8624

F60-64

8624

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

20265

Females

8069

F60-64

8069

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

20566

Females

8407

F60-64

8407

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

20769

Females

8628

F60-64

8628

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

20332

Females

8497

F60-64

8497

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

20623

Females

8647

F60-64

8647

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

20378

Females

8589

F60-64

8589

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

20883

Females

8874

F60-64

8874

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20040

Females

8543

F60-64

8543

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

21487

Females

9223

F60-64

9223

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

21403

Females

9160

F60-64

9160

Passing Analysis

Category:
Athletes Passed
1838
Passed By
1066
Net Change
+772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21536
5K → 10K242246-4#21536#21540
10K → 15K26283+179#21540#21361
15K → 20K33774+263#21361#21098
20K → Half2242-20#21098#21118
Half → 25K24755+192#21118#20926
25K → 30K203131+72#20926#20854
30K → 20M7877+1#20854#20853
20M → 21M9069+21#20853#20832
21M → 35K7144+27#20832#20805
35K → 23M8865+23#20805#20782
23M → 24M5952+7#20782#20775
24M → 40K6646+20#20775#20755
40K → 25.2M2923+6#20755#20749
25.2M → Finish4459-15#20749#20764
TOTALS18381066+772
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing